M metronome.go +6 -0
@@ 1,5 1,6 @@
package main
+import "encoding/json"
import "fmt"
import "os"
import "io"
@@ 41,12 42,17 @@ func NewDelayedCachedReader(r io.Reader)
return &DelayedCachedReader{r, false, nil}
}
+// This is nasty
func (r *DelayedCachedReader) MarshalJSON() ([]byte, error) {
if r.IsLoaded == false {
data, err := ioutil.ReadAll(r.File)
if err != nil {
return nil, err
}
+ data, err = json.Marshal(data)
+ if err != nil {
+ return nil, err
+ }
r.IsLoaded = true
r.data = data
}
M server.go +0 -26
@@ 83,32 83,6 @@ func (h *MetronomeHandler) validateResou
return nil
}
-/*
-func (h *MetronomeHandler) resourceData(r *Resource) (interface{}, error) {
- // Get Directory listing
- if r.IsDir() {
- listing, err := r.dirListing(fspath)
- if err != nil {
- log.Printf("error getting listing of %v: %v", fspath, err)
- return websocket.JSON.Send(ws, &Error{
- Message: "Server failed to get a directory listing",
- Details: err.Error(),
- })
- }
- return websocket.JSON.Send(ws, &State{
- Path: r.Path,
- Payload: listing,
- })
- }
-
- // Or read a file
- return websocket.JSON.Send(ws, &State{
- Path: r.Path,
- Payload: NewDelayedCachedReader(fspath),
- })
-}
-*/
-
func (h *MetronomeHandler) serveWS(ws *websocket.Conn) {
defer ws.Close()
for {
A => static/backbone-min.js +2 -0
@@ 0,0 1,2 @@
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p=["keys","values","pairs","invert","pick","omit"];h.each(p,function(t){d.prototype[t]=function(){var e=s.call(arguments);e.unshift(this.attributes);return h[t].apply(h,e)}});var v=a.Collection=function(t,e){e||(e={});if(e.model)this.model=e.model;if(e.comparator!==void 0)this.comparator=e.comparator;this._reset();this.initialize.apply(this,arguments);if(t)this.reset(t,h.extend({silent:true},e))};var g={add:true,remove:true,merge:true};var m={add:true,remove:false};h.extend(v.prototype,o,{model:d,initialize:function(){},toJSON:function(t){return this.map(function(e){return e.toJSON(t)})},sync:function(){return a.sync.apply(this,arguments)},add:function(t,e){return this.set(t,h.extend({merge:false},e,m))},remove:function(t,e){var i=!h.isArray(t);t=i?[t]:h.clone(t);e||(e={});var r,s,n,a;for(r=0,s=t.length;r<s;r++){a=t[r]=this.get(t[r]);if(!a)continue;delete this._byId[a.id];delete 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this},undelegateEvents:function(){this.$el.off(".delegateEvents"+this.cid);return this},_ensureElement:function(){if(!this.el){var t=h.extend({},h.result(this,"attributes"));if(this.id)t.id=h.result(this,"id");if(this.className)t["class"]=h.result(this,"className");var e=a.$("<"+h.result(this,"tagName")+">").attr(t);this.setElement(e,false)}else{this.setElement(h.result(this,"el"),false)}}});a.sync=function(t,e,i){var r=T[t];h.defaults(i||(i={}),{emulateHTTP:a.emulateHTTP,emulateJSON:a.emulateJSON});var s={type:r,dataType:"json"};if(!i.url){s.url=h.result(e,"url")||U()}if(i.data==null&&e&&(t==="create"||t==="update"||t==="patch")){s.contentType="application/json";s.data=JSON.stringify(i.attrs||e.toJSON(i))}if(i.emulateJSON){s.contentType="application/x-www-form-urlencoded";s.data=s.data?{model:s.data}:{}}if(i.emulateHTTP&&(r==="PUT"||r==="DELETE"||r==="PATCH")){s.type="POST";if(i.emulateJSON)s.data._method=r;var n=i.beforeSend;i.beforeSend=function(t){t.setRequestHeader("X-HTTP-Method-Override",r);if(n)return n.apply(this,arguments)}}if(s.type!=="GET"&&!i.emulateJSON){s.processData=false}if(s.type==="PATCH"&&E){s.xhr=function(){return new ActiveXObject("Microsoft.XMLHTTP")}}var o=i.xhr=a.ajax(h.extend(s,i));e.trigger("request",e,o,i);return o};var E=typeof window!=="undefined"&&!!window.ActiveXObject&&!(window.XMLHttpRequest&&(new XMLHttpRequest).dispatchEvent);var T={create:"POST",update:"PUT",patch:"PATCH","delete":"DELETE",read:"GET"};a.ajax=function(){return a.$.ajax.apply(a.$,arguments)};var k=a.Router=function(t){t||(t={});if(t.routes)this.routes=t.routes;this._bindRoutes();this.initialize.apply(this,arguments)};var S=/\((.*?)\)/g;var $=/(\(\?)?:\w+/g;var H=/\*\w+/g;var A=/[\-{}\[\]+?.,\\\^$|#\s]/g;h.extend(k.prototype,o,{initialize:function(){},route:function(t,e,i){if(!h.isRegExp(t))t=this._routeToRegExp(t);if(h.isFunction(e)){i=e;e=""}if(!i)i=this[e];var r=this;a.history.route(t,function(s){var n=r._extractParameters(t,s);i&&i.apply(r,n);r.trigger.apply(r,["route:"+e].concat(n));r.trigger("route",e,n);a.history.trigger("route",r,e,n)});return this},navigate:function(t,e){a.history.navigate(t,e);return this},_bindRoutes:function(){if(!this.routes)return;this.routes=h.result(this,"routes");var t,e=h.keys(this.routes);while((t=e.pop())!=null){this.route(t,this.routes[t])}},_routeToRegExp:function(t){t=t.replace(A,"\\$&").replace(S,"(?:$1)?").replace($,function(t,e){return e?t:"([^/]+)"}).replace(H,"(.*?)");return new RegExp("^"+t+"$")},_extractParameters:function(t,e){var i=t.exec(e).slice(1);return h.map(i,function(t){return t?decodeURIComponent(t):null})}});var I=a.History=function(){this.handlers=[];h.bindAll(this,"checkUrl");if(typeof window!=="undefined"){this.location=window.location;this.history=window.history}};var N=/^[#\/]|\s+$/g;var O=/^\/+|\/+$/g;var P=/msie [\w.]+/;var C=/\/$/;var 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if(this._wantsHashChange){this._updateHash(this.location,t,e.replace);if(this.iframe&&t!==this.getFragment(this.getHash(this.iframe))){if(!e.replace)this.iframe.document.open().close();this._updateHash(this.iframe.location,t,e.replace)}}else{return this.location.assign(i)}if(e.trigger)return this.loadUrl(t)},_updateHash:function(t,e,i){if(i){var r=t.href.replace(/(javascript:|#).*$/,"");t.replace(r+"#"+e)}else{t.hash="#"+e}}});a.history=new I;var R=function(t,e){var i=this;var r;if(t&&h.has(t,"constructor")){r=t.constructor}else{r=function(){return i.apply(this,arguments)}}h.extend(r,i,e);var s=function(){this.constructor=r};s.prototype=i.prototype;r.prototype=new s;if(t)h.extend(r.prototype,t);r.__super__=i.prototype;return r};d.extend=v.extend=k.extend=w.extend=I.extend=R;var U=function(){throw new Error('A "url" property or function must be specified')};var M=function(t,e){var i=e.error;e.error=function(r){if(i)i(t,r,e);t.trigger("error",t,r,e)}}}).call(this);
+//# sourceMappingURL=backbone-min.map
No newline at end of file
A => static/backbone.js +1581 -0
@@ 0,0 1,1581 @@
+// Backbone.js 1.1.0
+
+// (c) 2010-2011 Jeremy Ashkenas, DocumentCloud Inc.
+// (c) 2011-2013 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+// Backbone may be freely distributed under the MIT license.
+// For all details and documentation:
+// http://backbonejs.org
+
+(function(){
+
+ // Initial Setup
+ // -------------
+
+ // Save a reference to the global object (`window` in the browser, `exports`
+ // on the server).
+ var root = this;
+
+ // Save the previous value of the `Backbone` variable, so that it can be
+ // restored later on, if `noConflict` is used.
+ var previousBackbone = root.Backbone;
+
+ // Create local references to array methods we'll want to use later.
+ var array = [];
+ var push = array.push;
+ var slice = array.slice;
+ var splice = array.splice;
+
+ // The top-level namespace. All public Backbone classes and modules will
+ // be attached to this. Exported for both the browser and the server.
+ var Backbone;
+ if (typeof exports !== 'undefined') {
+ Backbone = exports;
+ } else {
+ Backbone = root.Backbone = {};
+ }
+
+ // Current version of the library. Keep in sync with `package.json`.
+ Backbone.VERSION = '1.1.0';
+
+ // Require Underscore, if we're on the server, and it's not already present.
+ var _ = root._;
+ if (!_ && (typeof require !== 'undefined')) _ = require('underscore');
+
+ // For Backbone's purposes, jQuery, Zepto, Ender, or My Library (kidding) owns
+ // the `$` variable.
+ Backbone.$ = root.jQuery || root.Zepto || root.ender || root.$;
+
+ // Runs Backbone.js in *noConflict* mode, returning the `Backbone` variable
+ // to its previous owner. Returns a reference to this Backbone object.
+ Backbone.noConflict = function() {
+ root.Backbone = previousBackbone;
+ return this;
+ };
+
+ // Turn on `emulateHTTP` to support legacy HTTP servers. Setting this option
+ // will fake `"PATCH"`, `"PUT"` and `"DELETE"` requests via the `_method` parameter and
+ // set a `X-Http-Method-Override` header.
+ Backbone.emulateHTTP = false;
+
+ // Turn on `emulateJSON` to support legacy servers that can't deal with direct
+ // `application/json` requests ... will encode the body as
+ // `application/x-www-form-urlencoded` instead and will send the model in a
+ // form param named `model`.
+ Backbone.emulateJSON = false;
+
+ // Backbone.Events
+ // ---------------
+
+ // A module that can be mixed in to *any object* in order to provide it with
+ // custom events. You may bind with `on` or remove with `off` callback
+ // functions to an event; `trigger`-ing an event fires all callbacks in
+ // succession.
+ //
+ // var object = {};
+ // _.extend(object, Backbone.Events);
+ // object.on('expand', function(){ alert('expanded'); });
+ // object.trigger('expand');
+ //
+ var Events = Backbone.Events = {
+
+ // Bind an event to a `callback` function. Passing `"all"` will bind
+ // the callback to all events fired.
+ on: function(name, callback, context) {
+ if (!eventsApi(this, 'on', name, [callback, context]) || !callback) return this;
+ this._events || (this._events = {});
+ var events = this._events[name] || (this._events[name] = []);
+ events.push({callback: callback, context: context, ctx: context || this});
+ return this;
+ },
+
+ // Bind an event to only be triggered a single time. After the first time
+ // the callback is invoked, it will be removed.
+ once: function(name, callback, context) {
+ if (!eventsApi(this, 'once', name, [callback, context]) || !callback) return this;
+ var self = this;
+ var once = _.once(function() {
+ self.off(name, once);
+ callback.apply(this, arguments);
+ });
+ once._callback = callback;
+ return this.on(name, once, context);
+ },
+
+ // Remove one or many callbacks. If `context` is null, removes all
+ // callbacks with that function. If `callback` is null, removes all
+ // callbacks for the event. If `name` is null, removes all bound
+ // callbacks for all events.
+ off: function(name, callback, context) {
+ var retain, ev, events, names, i, l, j, k;
+ if (!this._events || !eventsApi(this, 'off', name, [callback, context])) return this;
+ if (!name && !callback && !context) {
+ this._events = {};
+ return this;
+ }
+ names = name ? [name] : _.keys(this._events);
+ for (i = 0, l = names.length; i < l; i++) {
+ name = names[i];
+ if (events = this._events[name]) {
+ this._events[name] = retain = [];
+ if (callback || context) {
+ for (j = 0, k = events.length; j < k; j++) {
+ ev = events[j];
+ if ((callback && callback !== ev.callback && callback !== ev.callback._callback) ||
+ (context && context !== ev.context)) {
+ retain.push(ev);
+ }
+ }
+ }
+ if (!retain.length) delete this._events[name];
+ }
+ }
+
+ return this;
+ },
+
+ // Trigger one or many events, firing all bound callbacks. Callbacks are
+ // passed the same arguments as `trigger` is, apart from the event name
+ // (unless you're listening on `"all"`, which will cause your callback to
+ // receive the true name of the event as the first argument).
+ trigger: function(name) {
+ if (!this._events) return this;
+ var args = slice.call(arguments, 1);
+ if (!eventsApi(this, 'trigger', name, args)) return this;
+ var events = this._events[name];
+ var allEvents = this._events.all;
+ if (events) triggerEvents(events, args);
+ if (allEvents) triggerEvents(allEvents, arguments);
+ return this;
+ },
+
+ // Tell this object to stop listening to either specific events ... or
+ // to every object it's currently listening to.
+ stopListening: function(obj, name, callback) {
+ var listeningTo = this._listeningTo;
+ if (!listeningTo) return this;
+ var remove = !name && !callback;
+ if (!callback && typeof name === 'object') callback = this;
+ if (obj) (listeningTo = {})[obj._listenId] = obj;
+ for (var id in listeningTo) {
+ obj = listeningTo[id];
+ obj.off(name, callback, this);
+ if (remove || _.isEmpty(obj._events)) delete this._listeningTo[id];
+ }
+ return this;
+ }
+
+ };
+
+ // Regular expression used to split event strings.
+ var eventSplitter = /\s+/;
+
+ // Implement fancy features of the Events API such as multiple event
+ // names `"change blur"` and jQuery-style event maps `{change: action}`
+ // in terms of the existing API.
+ var eventsApi = function(obj, action, name, rest) {
+ if (!name) return true;
+
+ // Handle event maps.
+ if (typeof name === 'object') {
+ for (var key in name) {
+ obj[action].apply(obj, [key, name[key]].concat(rest));
+ }
+ return false;
+ }
+
+ // Handle space separated event names.
+ if (eventSplitter.test(name)) {
+ var names = name.split(eventSplitter);
+ for (var i = 0, l = names.length; i < l; i++) {
+ obj[action].apply(obj, [names[i]].concat(rest));
+ }
+ return false;
+ }
+
+ return true;
+ };
+
+ // A difficult-to-believe, but optimized internal dispatch function for
+ // triggering events. Tries to keep the usual cases speedy (most internal
+ // Backbone events have 3 arguments).
+ var triggerEvents = function(events, args) {
+ var ev, i = -1, l = events.length, a1 = args[0], a2 = args[1], a3 = args[2];
+ switch (args.length) {
+ case 0: while (++i < l) (ev = events[i]).callback.call(ev.ctx); return;
+ case 1: while (++i < l) (ev = events[i]).callback.call(ev.ctx, a1); return;
+ case 2: while (++i < l) (ev = events[i]).callback.call(ev.ctx, a1, a2); return;
+ case 3: while (++i < l) (ev = events[i]).callback.call(ev.ctx, a1, a2, a3); return;
+ default: while (++i < l) (ev = events[i]).callback.apply(ev.ctx, args);
+ }
+ };
+
+ var listenMethods = {listenTo: 'on', listenToOnce: 'once'};
+
+ // Inversion-of-control versions of `on` and `once`. Tell *this* object to
+ // listen to an event in another object ... keeping track of what it's
+ // listening to.
+ _.each(listenMethods, function(implementation, method) {
+ Events[method] = function(obj, name, callback) {
+ var listeningTo = this._listeningTo || (this._listeningTo = {});
+ var id = obj._listenId || (obj._listenId = _.uniqueId('l'));
+ listeningTo[id] = obj;
+ if (!callback && typeof name === 'object') callback = this;
+ obj[implementation](name, callback, this);
+ return this;
+ };
+ });
+
+ // Aliases for backwards compatibility.
+ Events.bind = Events.on;
+ Events.unbind = Events.off;
+
+ // Allow the `Backbone` object to serve as a global event bus, for folks who
+ // want global "pubsub" in a convenient place.
+ _.extend(Backbone, Events);
+
+ // Backbone.Model
+ // --------------
+
+ // Backbone **Models** are the basic data object in the framework --
+ // frequently representing a row in a table in a database on your server.
+ // A discrete chunk of data and a bunch of useful, related methods for
+ // performing computations and transformations on that data.
+
+ // Create a new model with the specified attributes. A client id (`cid`)
+ // is automatically generated and assigned for you.
+ var Model = Backbone.Model = function(attributes, options) {
+ var attrs = attributes || {};
+ options || (options = {});
+ this.cid = _.uniqueId('c');
+ this.attributes = {};
+ if (options.collection) this.collection = options.collection;
+ if (options.parse) attrs = this.parse(attrs, options) || {};
+ attrs = _.defaults({}, attrs, _.result(this, 'defaults'));
+ this.set(attrs, options);
+ this.changed = {};
+ this.initialize.apply(this, arguments);
+ };
+
+ // Attach all inheritable methods to the Model prototype.
+ _.extend(Model.prototype, Events, {
+
+ // A hash of attributes whose current and previous value differ.
+ changed: null,
+
+ // The value returned during the last failed validation.
+ validationError: null,
+
+ // The default name for the JSON `id` attribute is `"id"`. MongoDB and
+ // CouchDB users may want to set this to `"_id"`.
+ idAttribute: 'id',
+
+ // Initialize is an empty function by default. Override it with your own
+ // initialization logic.
+ initialize: function(){},
+
+ // Return a copy of the model's `attributes` object.
+ toJSON: function(options) {
+ return _.clone(this.attributes);
+ },
+
+ // Proxy `Backbone.sync` by default -- but override this if you need
+ // custom syncing semantics for *this* particular model.
+ sync: function() {
+ return Backbone.sync.apply(this, arguments);
+ },
+
+ // Get the value of an attribute.
+ get: function(attr) {
+ return this.attributes[attr];
+ },
+
+ // Get the HTML-escaped value of an attribute.
+ escape: function(attr) {
+ return _.escape(this.get(attr));
+ },
+
+ // Returns `true` if the attribute contains a value that is not null
+ // or undefined.
+ has: function(attr) {
+ return this.get(attr) != null;
+ },
+
+ // Set a hash of model attributes on the object, firing `"change"`. This is
+ // the core primitive operation of a model, updating the data and notifying
+ // anyone who needs to know about the change in state. The heart of the beast.
+ set: function(key, val, options) {
+ var attr, attrs, unset, changes, silent, changing, prev, current;
+ if (key == null) return this;
+
+ // Handle both `"key", value` and `{key: value}` -style arguments.
+ if (typeof key === 'object') {
+ attrs = key;
+ options = val;
+ } else {
+ (attrs = {})[key] = val;
+ }
+
+ options || (options = {});
+
+ // Run validation.
+ if (!this._validate(attrs, options)) return false;
+
+ // Extract attributes and options.
+ unset = options.unset;
+ silent = options.silent;
+ changes = [];
+ changing = this._changing;
+ this._changing = true;
+
+ if (!changing) {
+ this._previousAttributes = _.clone(this.attributes);
+ this.changed = {};
+ }
+ current = this.attributes, prev = this._previousAttributes;
+
+ // Check for changes of `id`.
+ if (this.idAttribute in attrs) this.id = attrs[this.idAttribute];
+
+ // For each `set` attribute, update or delete the current value.
+ for (attr in attrs) {
+ val = attrs[attr];
+ if (!_.isEqual(current[attr], val)) changes.push(attr);
+ if (!_.isEqual(prev[attr], val)) {
+ this.changed[attr] = val;
+ } else {
+ delete this.changed[attr];
+ }
+ unset ? delete current[attr] : current[attr] = val;
+ }
+
+ // Trigger all relevant attribute changes.
+ if (!silent) {
+ if (changes.length) this._pending = true;
+ for (var i = 0, l = changes.length; i < l; i++) {
+ this.trigger('change:' + changes[i], this, current[changes[i]], options);
+ }
+ }
+
+ // You might be wondering why there's a `while` loop here. Changes can
+ // be recursively nested within `"change"` events.
+ if (changing) return this;
+ if (!silent) {
+ while (this._pending) {
+ this._pending = false;
+ this.trigger('change', this, options);
+ }
+ }
+ this._pending = false;
+ this._changing = false;
+ return this;
+ },
+
+ // Remove an attribute from the model, firing `"change"`. `unset` is a noop
+ // if the attribute doesn't exist.
+ unset: function(attr, options) {
+ return this.set(attr, void 0, _.extend({}, options, {unset: true}));
+ },
+
+ // Clear all attributes on the model, firing `"change"`.
+ clear: function(options) {
+ var attrs = {};
+ for (var key in this.attributes) attrs[key] = void 0;
+ return this.set(attrs, _.extend({}, options, {unset: true}));
+ },
+
+ // Determine if the model has changed since the last `"change"` event.
+ // If you specify an attribute name, determine if that attribute has changed.
+ hasChanged: function(attr) {
+ if (attr == null) return !_.isEmpty(this.changed);
+ return _.has(this.changed, attr);
+ },
+
+ // Return an object containing all the attributes that have changed, or
+ // false if there are no changed attributes. Useful for determining what
+ // parts of a view need to be updated and/or what attributes need to be
+ // persisted to the server. Unset attributes will be set to undefined.
+ // You can also pass an attributes object to diff against the model,
+ // determining if there *would be* a change.
+ changedAttributes: function(diff) {
+ if (!diff) return this.hasChanged() ? _.clone(this.changed) : false;
+ var val, changed = false;
+ var old = this._changing ? this._previousAttributes : this.attributes;
+ for (var attr in diff) {
+ if (_.isEqual(old[attr], (val = diff[attr]))) continue;
+ (changed || (changed = {}))[attr] = val;
+ }
+ return changed;
+ },
+
+ // Get the previous value of an attribute, recorded at the time the last
+ // `"change"` event was fired.
+ previous: function(attr) {
+ if (attr == null || !this._previousAttributes) return null;
+ return this._previousAttributes[attr];
+ },
+
+ // Get all of the attributes of the model at the time of the previous
+ // `"change"` event.
+ previousAttributes: function() {
+ return _.clone(this._previousAttributes);
+ },
+
+ // Fetch the model from the server. If the server's representation of the
+ // model differs from its current attributes, they will be overridden,
+ // triggering a `"change"` event.
+ fetch: function(options) {
+ options = options ? _.clone(options) : {};
+ if (options.parse === void 0) options.parse = true;
+ var model = this;
+ var success = options.success;
+ options.success = function(resp) {
+ if (!model.set(model.parse(resp, options), options)) return false;
+ if (success) success(model, resp, options);
+ model.trigger('sync', model, resp, options);
+ };
+ wrapError(this, options);
+ return this.sync('read', this, options);
+ },
+
+ // Set a hash of model attributes, and sync the model to the server.
+ // If the server returns an attributes hash that differs, the model's
+ // state will be `set` again.
+ save: function(key, val, options) {
+ var attrs, method, xhr, attributes = this.attributes;
+
+ // Handle both `"key", value` and `{key: value}` -style arguments.
+ if (key == null || typeof key === 'object') {
+ attrs = key;
+ options = val;
+ } else {
+ (attrs = {})[key] = val;
+ }
+
+ options = _.extend({validate: true}, options);
+
+ // If we're not waiting and attributes exist, save acts as
+ // `set(attr).save(null, opts)` with validation. Otherwise, check if
+ // the model will be valid when the attributes, if any, are set.
+ if (attrs && !options.wait) {
+ if (!this.set(attrs, options)) return false;
+ } else {
+ if (!this._validate(attrs, options)) return false;
+ }
+
+ // Set temporary attributes if `{wait: true}`.
+ if (attrs && options.wait) {
+ this.attributes = _.extend({}, attributes, attrs);
+ }
+
+ // After a successful server-side save, the client is (optionally)
+ // updated with the server-side state.
+ if (options.parse === void 0) options.parse = true;
+ var model = this;
+ var success = options.success;
+ options.success = function(resp) {
+ // Ensure attributes are restored during synchronous saves.
+ model.attributes = attributes;
+ var serverAttrs = model.parse(resp, options);
+ if (options.wait) serverAttrs = _.extend(attrs || {}, serverAttrs);
+ if (_.isObject(serverAttrs) && !model.set(serverAttrs, options)) {
+ return false;
+ }
+ if (success) success(model, resp, options);
+ model.trigger('sync', model, resp, options);
+ };
+ wrapError(this, options);
+
+ method = this.isNew() ? 'create' : (options.patch ? 'patch' : 'update');
+ if (method === 'patch') options.attrs = attrs;
+ xhr = this.sync(method, this, options);
+
+ // Restore attributes.
+ if (attrs && options.wait) this.attributes = attributes;
+
+ return xhr;
+ },
+
+ // Destroy this model on the server if it was already persisted.
+ // Optimistically removes the model from its collection, if it has one.
+ // If `wait: true` is passed, waits for the server to respond before removal.
+ destroy: function(options) {
+ options = options ? _.clone(options) : {};
+ var model = this;
+ var success = options.success;
+
+ var destroy = function() {
+ model.trigger('destroy', model, model.collection, options);
+ };
+
+ options.success = function(resp) {
+ if (options.wait || model.isNew()) destroy();
+ if (success) success(model, resp, options);
+ if (!model.isNew()) model.trigger('sync', model, resp, options);
+ };
+
+ if (this.isNew()) {
+ options.success();
+ return false;
+ }
+ wrapError(this, options);
+
+ var xhr = this.sync('delete', this, options);
+ if (!options.wait) destroy();
+ return xhr;
+ },
+
+ // Default URL for the model's representation on the server -- if you're
+ // using Backbone's restful methods, override this to change the endpoint
+ // that will be called.
+ url: function() {
+ var base = _.result(this, 'urlRoot') || _.result(this.collection, 'url') || urlError();
+ if (this.isNew()) return base;
+ return base + (base.charAt(base.length - 1) === '/' ? '' : '/') + encodeURIComponent(this.id);
+ },
+
+ // **parse** converts a response into the hash of attributes to be `set` on
+ // the model. The default implementation is just to pass the response along.
+ parse: function(resp, options) {
+ return resp;
+ },
+
+ // Create a new model with identical attributes to this one.
+ clone: function() {
+ return new this.constructor(this.attributes);
+ },
+
+ // A model is new if it has never been saved to the server, and lacks an id.
+ isNew: function() {
+ return this.id == null;
+ },
+
+ // Check if the model is currently in a valid state.
+ isValid: function(options) {
+ return this._validate({}, _.extend(options || {}, { validate: true }));
+ },
+
+ // Run validation against the next complete set of model attributes,
+ // returning `true` if all is well. Otherwise, fire an `"invalid"` event.
+ _validate: function(attrs, options) {
+ if (!options.validate || !this.validate) return true;
+ attrs = _.extend({}, this.attributes, attrs);
+ var error = this.validationError = this.validate(attrs, options) || null;
+ if (!error) return true;
+ this.trigger('invalid', this, error, _.extend(options, {validationError: error}));
+ return false;
+ }
+
+ });
+
+ // Underscore methods that we want to implement on the Model.
+ var modelMethods = ['keys', 'values', 'pairs', 'invert', 'pick', 'omit'];
+
+ // Mix in each Underscore method as a proxy to `Model#attributes`.
+ _.each(modelMethods, function(method) {
+ Model.prototype[method] = function() {
+ var args = slice.call(arguments);
+ args.unshift(this.attributes);
+ return _[method].apply(_, args);
+ };
+ });
+
+ // Backbone.Collection
+ // -------------------
+
+ // If models tend to represent a single row of data, a Backbone Collection is
+ // more analagous to a table full of data ... or a small slice or page of that
+ // table, or a collection of rows that belong together for a particular reason
+ // -- all of the messages in this particular folder, all of the documents
+ // belonging to this particular author, and so on. Collections maintain
+ // indexes of their models, both in order, and for lookup by `id`.
+
+ // Create a new **Collection**, perhaps to contain a specific type of `model`.
+ // If a `comparator` is specified, the Collection will maintain
+ // its models in sort order, as they're added and removed.
+ var Collection = Backbone.Collection = function(models, options) {
+ options || (options = {});
+ if (options.model) this.model = options.model;
+ if (options.comparator !== void 0) this.comparator = options.comparator;
+ this._reset();
+ this.initialize.apply(this, arguments);
+ if (models) this.reset(models, _.extend({silent: true}, options));
+ };
+
+ // Default options for `Collection#set`.
+ var setOptions = {add: true, remove: true, merge: true};
+ var addOptions = {add: true, remove: false};
+
+ // Define the Collection's inheritable methods.
+ _.extend(Collection.prototype, Events, {
+
+ // The default model for a collection is just a **Backbone.Model**.
+ // This should be overridden in most cases.
+ model: Model,
+
+ // Initialize is an empty function by default. Override it with your own
+ // initialization logic.
+ initialize: function(){},
+
+ // The JSON representation of a Collection is an array of the
+ // models' attributes.
+ toJSON: function(options) {
+ return this.map(function(model){ return model.toJSON(options); });
+ },
+
+ // Proxy `Backbone.sync` by default.
+ sync: function() {
+ return Backbone.sync.apply(this, arguments);
+ },
+
+ // Add a model, or list of models to the set.
+ add: function(models, options) {
+ return this.set(models, _.extend({merge: false}, options, addOptions));
+ },
+
+ // Remove a model, or a list of models from the set.
+ remove: function(models, options) {
+ var singular = !_.isArray(models);
+ models = singular ? [models] : _.clone(models);
+ options || (options = {});
+ var i, l, index, model;
+ for (i = 0, l = models.length; i < l; i++) {
+ model = models[i] = this.get(models[i]);
+ if (!model) continue;
+ delete this._byId[model.id];
+ delete this._byId[model.cid];
+ index = this.indexOf(model);
+ this.models.splice(index, 1);
+ this.length--;
+ if (!options.silent) {
+ options.index = index;
+ model.trigger('remove', model, this, options);
+ }
+ this._removeReference(model);
+ }
+ return singular ? models[0] : models;
+ },
+
+ // Update a collection by `set`-ing a new list of models, adding new ones,
+ // removing models that are no longer present, and merging models that
+ // already exist in the collection, as necessary. Similar to **Model#set**,
+ // the core operation for updating the data contained by the collection.
+ set: function(models, options) {
+ options = _.defaults({}, options, setOptions);
+ if (options.parse) models = this.parse(models, options);
+ var singular = !_.isArray(models);
+ models = singular ? (models ? [models] : []) : _.clone(models);
+ var i, l, id, model, attrs, existing, sort;
+ var at = options.at;
+ var targetModel = this.model;
+ var sortable = this.comparator && (at == null) && options.sort !== false;
+ var sortAttr = _.isString(this.comparator) ? this.comparator : null;
+ var toAdd = [], toRemove = [], modelMap = {};
+ var add = options.add, merge = options.merge, remove = options.remove;
+ var order = !sortable && add && remove ? [] : false;
+
+ // Turn bare objects into model references, and prevent invalid models
+ // from being added.
+ for (i = 0, l = models.length; i < l; i++) {
+ attrs = models[i];
+ if (attrs instanceof Model) {
+ id = model = attrs;
+ } else {
+ id = attrs[targetModel.prototype.idAttribute];
+ }
+
+ // If a duplicate is found, prevent it from being added and
+ // optionally merge it into the existing model.
+ if (existing = this.get(id)) {
+ if (remove) modelMap[existing.cid] = true;
+ if (merge) {
+ attrs = attrs === model ? model.attributes : attrs;
+ if (options.parse) attrs = existing.parse(attrs, options);
+ existing.set(attrs, options);
+ if (sortable && !sort && existing.hasChanged(sortAttr)) sort = true;
+ }
+ models[i] = existing;
+
+ // If this is a new, valid model, push it to the `toAdd` list.
+ } else if (add) {
+ model = models[i] = this._prepareModel(attrs, options);
+ if (!model) continue;
+ toAdd.push(model);
+
+ // Listen to added models' events, and index models for lookup by
+ // `id` and by `cid`.
+ model.on('all', this._onModelEvent, this);
+ this._byId[model.cid] = model;
+ if (model.id != null) this._byId[model.id] = model;
+ }
+ if (order) order.push(existing || model);
+ }
+
+ // Remove nonexistent models if appropriate.
+ if (remove) {
+ for (i = 0, l = this.length; i < l; ++i) {
+ if (!modelMap[(model = this.models[i]).cid]) toRemove.push(model);
+ }
+ if (toRemove.length) this.remove(toRemove, options);
+ }
+
+ // See if sorting is needed, update `length` and splice in new models.
+ if (toAdd.length || (order && order.length)) {
+ if (sortable) sort = true;
+ this.length += toAdd.length;
+ if (at != null) {
+ for (i = 0, l = toAdd.length; i < l; i++) {
+ this.models.splice(at + i, 0, toAdd[i]);
+ }
+ } else {
+ if (order) this.models.length = 0;
+ var orderedModels = order || toAdd;
+ for (i = 0, l = orderedModels.length; i < l; i++) {
+ this.models.push(orderedModels[i]);
+ }
+ }
+ }
+
+ // Silently sort the collection if appropriate.
+ if (sort) this.sort({silent: true});
+
+ // Unless silenced, it's time to fire all appropriate add/sort events.
+ if (!options.silent) {
+ for (i = 0, l = toAdd.length; i < l; i++) {
+ (model = toAdd[i]).trigger('add', model, this, options);
+ }
+ if (sort || (order && order.length)) this.trigger('sort', this, options);
+ }
+
+ // Return the added (or merged) model (or models).
+ return singular ? models[0] : models;
+ },
+
+ // When you have more items than you want to add or remove individually,
+ // you can reset the entire set with a new list of models, without firing
+ // any granular `add` or `remove` events. Fires `reset` when finished.
+ // Useful for bulk operations and optimizations.
+ reset: function(models, options) {
+ options || (options = {});
+ for (var i = 0, l = this.models.length; i < l; i++) {
+ this._removeReference(this.models[i]);
+ }
+ options.previousModels = this.models;
+ this._reset();
+ models = this.add(models, _.extend({silent: true}, options));
+ if (!options.silent) this.trigger('reset', this, options);
+ return models;
+ },
+
+ // Add a model to the end of the collection.
+ push: function(model, options) {
+ return this.add(model, _.extend({at: this.length}, options));
+ },
+
+ // Remove a model from the end of the collection.
+ pop: function(options) {
+ var model = this.at(this.length - 1);
+ this.remove(model, options);
+ return model;
+ },
+
+ // Add a model to the beginning of the collection.
+ unshift: function(model, options) {
+ return this.add(model, _.extend({at: 0}, options));
+ },
+
+ // Remove a model from the beginning of the collection.
+ shift: function(options) {
+ var model = this.at(0);
+ this.remove(model, options);
+ return model;
+ },
+
+ // Slice out a sub-array of models from the collection.
+ slice: function() {
+ return slice.apply(this.models, arguments);
+ },
+
+ // Get a model from the set by id.
+ get: function(obj) {
+ if (obj == null) return void 0;
+ return this._byId[obj.id] || this._byId[obj.cid] || this._byId[obj];
+ },
+
+ // Get the model at the given index.
+ at: function(index) {
+ return this.models[index];
+ },
+
+ // Return models with matching attributes. Useful for simple cases of
+ // `filter`.
+ where: function(attrs, first) {
+ if (_.isEmpty(attrs)) return first ? void 0 : [];
+ return this[first ? 'find' : 'filter'](function(model) {
+ for (var key in attrs) {
+ if (attrs[key] !== model.get(key)) return false;
+ }
+ return true;
+ });
+ },
+
+ // Return the first model with matching attributes. Useful for simple cases
+ // of `find`.
+ findWhere: function(attrs) {
+ return this.where(attrs, true);
+ },
+
+ // Force the collection to re-sort itself. You don't need to call this under
+ // normal circumstances, as the set will maintain sort order as each item
+ // is added.
+ sort: function(options) {
+ if (!this.comparator) throw new Error('Cannot sort a set without a comparator');
+ options || (options = {});
+
+ // Run sort based on type of `comparator`.
+ if (_.isString(this.comparator) || this.comparator.length === 1) {
+ this.models = this.sortBy(this.comparator, this);
+ } else {
+ this.models.sort(_.bind(this.comparator, this));
+ }
+
+ if (!options.silent) this.trigger('sort', this, options);
+ return this;
+ },
+
+ // Pluck an attribute from each model in the collection.
+ pluck: function(attr) {
+ return _.invoke(this.models, 'get', attr);
+ },
+
+ // Fetch the default set of models for this collection, resetting the
+ // collection when they arrive. If `reset: true` is passed, the response
+ // data will be passed through the `reset` method instead of `set`.
+ fetch: function(options) {
+ options = options ? _.clone(options) : {};
+ if (options.parse === void 0) options.parse = true;
+ var success = options.success;
+ var collection = this;
+ options.success = function(resp) {
+ var method = options.reset ? 'reset' : 'set';
+ collection[method](resp, options);
+ if (success) success(collection, resp, options);
+ collection.trigger('sync', collection, resp, options);
+ };
+ wrapError(this, options);
+ return this.sync('read', this, options);
+ },
+
+ // Create a new instance of a model in this collection. Add the model to the
+ // collection immediately, unless `wait: true` is passed, in which case we
+ // wait for the server to agree.
+ create: function(model, options) {
+ options = options ? _.clone(options) : {};
+ if (!(model = this._prepareModel(model, options))) return false;
+ if (!options.wait) this.add(model, options);
+ var collection = this;
+ var success = options.success;
+ options.success = function(model, resp, options) {
+ if (options.wait) collection.add(model, options);
+ if (success) success(model, resp, options);
+ };
+ model.save(null, options);
+ return model;
+ },
+
+ // **parse** converts a response into a list of models to be added to the
+ // collection. The default implementation is just to pass it through.
+ parse: function(resp, options) {
+ return resp;
+ },
+
+ // Create a new collection with an identical list of models as this one.
+ clone: function() {
+ return new this.constructor(this.models);
+ },
+
+ // Private method to reset all internal state. Called when the collection
+ // is first initialized or reset.
+ _reset: function() {
+ this.length = 0;
+ this.models = [];
+ this._byId = {};
+ },
+
+ // Prepare a hash of attributes (or other model) to be added to this
+ // collection.
+ _prepareModel: function(attrs, options) {
+ if (attrs instanceof Model) {
+ if (!attrs.collection) attrs.collection = this;
+ return attrs;
+ }
+ options = options ? _.clone(options) : {};
+ options.collection = this;
+ var model = new this.model(attrs, options);
+ if (!model.validationError) return model;
+ this.trigger('invalid', this, model.validationError, options);
+ return false;
+ },
+
+ // Internal method to sever a model's ties to a collection.
+ _removeReference: function(model) {
+ if (this === model.collection) delete model.collection;
+ model.off('all', this._onModelEvent, this);
+ },
+
+ // Internal method called every time a model in the set fires an event.
+ // Sets need to update their indexes when models change ids. All other
+ // events simply proxy through. "add" and "remove" events that originate
+ // in other collections are ignored.
+ _onModelEvent: function(event, model, collection, options) {
+ if ((event === 'add' || event === 'remove') && collection !== this) return;
+ if (event === 'destroy') this.remove(model, options);
+ if (model && event === 'change:' + model.idAttribute) {
+ delete this._byId[model.previous(model.idAttribute)];
+ if (model.id != null) this._byId[model.id] = model;
+ }
+ this.trigger.apply(this, arguments);
+ }
+
+ });
+
+ // Underscore methods that we want to implement on the Collection.
+ // 90% of the core usefulness of Backbone Collections is actually implemented
+ // right here:
+ var methods = ['forEach', 'each', 'map', 'collect', 'reduce', 'foldl',
+ 'inject', 'reduceRight', 'foldr', 'find', 'detect', 'filter', 'select',
+ 'reject', 'every', 'all', 'some', 'any', 'include', 'contains', 'invoke',
+ 'max', 'min', 'toArray', 'size', 'first', 'head', 'take', 'initial', 'rest',
+ 'tail', 'drop', 'last', 'without', 'difference', 'indexOf', 'shuffle',
+ 'lastIndexOf', 'isEmpty', 'chain'];
+
+ // Mix in each Underscore method as a proxy to `Collection#models`.
+ _.each(methods, function(method) {
+ Collection.prototype[method] = function() {
+ var args = slice.call(arguments);
+ args.unshift(this.models);
+ return _[method].apply(_, args);
+ };
+ });
+
+ // Underscore methods that take a property name as an argument.
+ var attributeMethods = ['groupBy', 'countBy', 'sortBy'];
+
+ // Use attributes instead of properties.
+ _.each(attributeMethods, function(method) {
+ Collection.prototype[method] = function(value, context) {
+ var iterator = _.isFunction(value) ? value : function(model) {
+ return model.get(value);
+ };
+ return _[method](this.models, iterator, context);
+ };
+ });
+
+ // Backbone.View
+ // -------------
+
+ // Backbone Views are almost more convention than they are actual code. A View
+ // is simply a JavaScript object that represents a logical chunk of UI in the
+ // DOM. This might be a single item, an entire list, a sidebar or panel, or
+ // even the surrounding frame which wraps your whole app. Defining a chunk of
+ // UI as a **View** allows you to define your DOM events declaratively, without
+ // having to worry about render order ... and makes it easy for the view to
+ // react to specific changes in the state of your models.
+
+ // Creating a Backbone.View creates its initial element outside of the DOM,
+ // if an existing element is not provided...
+ var View = Backbone.View = function(options) {
+ this.cid = _.uniqueId('view');
+ options || (options = {});
+ _.extend(this, _.pick(options, viewOptions));
+ this._ensureElement();
+ this.initialize.apply(this, arguments);
+ this.delegateEvents();
+ };
+
+ // Cached regex to split keys for `delegate`.
+ var delegateEventSplitter = /^(\S+)\s*(.*)$/;
+
+ // List of view options to be merged as properties.
+ var viewOptions = ['model', 'collection', 'el', 'id', 'attributes', 'className', 'tagName', 'events'];
+
+ // Set up all inheritable **Backbone.View** properties and methods.
+ _.extend(View.prototype, Events, {
+
+ // The default `tagName` of a View's element is `"div"`.
+ tagName: 'div',
+
+ // jQuery delegate for element lookup, scoped to DOM elements within the
+ // current view. This should be preferred to global lookups where possible.
+ $: function(selector) {
+ return this.$el.find(selector);
+ },
+
+ // Initialize is an empty function by default. Override it with your own
+ // initialization logic.
+ initialize: function(){},
+
+ // **render** is the core function that your view should override, in order
+ // to populate its element (`this.el`), with the appropriate HTML. The
+ // convention is for **render** to always return `this`.
+ render: function() {
+ return this;
+ },
+
+ // Remove this view by taking the element out of the DOM, and removing any
+ // applicable Backbone.Events listeners.
+ remove: function() {
+ this.$el.remove();
+ this.stopListening();
+ return this;
+ },
+
+ // Change the view's element (`this.el` property), including event
+ // re-delegation.
+ setElement: function(element, delegate) {
+ if (this.$el) this.undelegateEvents();
+ this.$el = element instanceof Backbone.$ ? element : Backbone.$(element);
+ this.el = this.$el[0];
+ if (delegate !== false) this.delegateEvents();
+ return this;
+ },
+
+ // Set callbacks, where `this.events` is a hash of
+ //
+ // *{"event selector": "callback"}*
+ //
+ // {
+ // 'mousedown .title': 'edit',
+ // 'click .button': 'save',
+ // 'click .open': function(e) { ... }
+ // }
+ //
+ // pairs. Callbacks will be bound to the view, with `this` set properly.
+ // Uses event delegation for efficiency.
+ // Omitting the selector binds the event to `this.el`.
+ // This only works for delegate-able events: not `focus`, `blur`, and
+ // not `change`, `submit`, and `reset` in Internet Explorer.
+ delegateEvents: function(events) {
+ if (!(events || (events = _.result(this, 'events')))) return this;
+ this.undelegateEvents();
+ for (var key in events) {
+ var method = events[key];
+ if (!_.isFunction(method)) method = this[events[key]];
+ if (!method) continue;
+
+ var match = key.match(delegateEventSplitter);
+ var eventName = match[1], selector = match[2];
+ method = _.bind(method, this);
+ eventName += '.delegateEvents' + this.cid;
+ if (selector === '') {
+ this.$el.on(eventName, method);
+ } else {
+ this.$el.on(eventName, selector, method);
+ }
+ }
+ return this;
+ },
+
+ // Clears all callbacks previously bound to the view with `delegateEvents`.
+ // You usually don't need to use this, but may wish to if you have multiple
+ // Backbone views attached to the same DOM element.
+ undelegateEvents: function() {
+ this.$el.off('.delegateEvents' + this.cid);
+ return this;
+ },
+
+ // Ensure that the View has a DOM element to render into.
+ // If `this.el` is a string, pass it through `$()`, take the first
+ // matching element, and re-assign it to `el`. Otherwise, create
+ // an element from the `id`, `className` and `tagName` properties.
+ _ensureElement: function() {
+ if (!this.el) {
+ var attrs = _.extend({}, _.result(this, 'attributes'));
+ if (this.id) attrs.id = _.result(this, 'id');
+ if (this.className) attrs['class'] = _.result(this, 'className');
+ var $el = Backbone.$('<' + _.result(this, 'tagName') + '>').attr(attrs);
+ this.setElement($el, false);
+ } else {
+ this.setElement(_.result(this, 'el'), false);
+ }
+ }
+
+ });
+
+ // Backbone.sync
+ // -------------
+
+ // Override this function to change the manner in which Backbone persists
+ // models to the server. You will be passed the type of request, and the
+ // model in question. By default, makes a RESTful Ajax request
+ // to the model's `url()`. Some possible customizations could be:
+ //
+ // * Use `setTimeout` to batch rapid-fire updates into a single request.
+ // * Send up the models as XML instead of JSON.
+ // * Persist models via WebSockets instead of Ajax.
+ //
+ // Turn on `Backbone.emulateHTTP` in order to send `PUT` and `DELETE` requests
+ // as `POST`, with a `_method` parameter containing the true HTTP method,
+ // as well as all requests with the body as `application/x-www-form-urlencoded`
+ // instead of `application/json` with the model in a param named `model`.
+ // Useful when interfacing with server-side languages like **PHP** that make
+ // it difficult to read the body of `PUT` requests.
+ Backbone.sync = function(method, model, options) {
+ var type = methodMap[method];
+
+ // Default options, unless specified.
+ _.defaults(options || (options = {}), {
+ emulateHTTP: Backbone.emulateHTTP,
+ emulateJSON: Backbone.emulateJSON
+ });
+
+ // Default JSON-request options.
+ var params = {type: type, dataType: 'json'};
+
+ // Ensure that we have a URL.
+ if (!options.url) {
+ params.url = _.result(model, 'url') || urlError();
+ }
+
+ // Ensure that we have the appropriate request data.
+ if (options.data == null && model && (method === 'create' || method === 'update' || method === 'patch')) {
+ params.contentType = 'application/json';
+ params.data = JSON.stringify(options.attrs || model.toJSON(options));
+ }
+
+ // For older servers, emulate JSON by encoding the request into an HTML-form.
+ if (options.emulateJSON) {
+ params.contentType = 'application/x-www-form-urlencoded';
+ params.data = params.data ? {model: params.data} : {};
+ }
+
+ // For older servers, emulate HTTP by mimicking the HTTP method with `_method`
+ // And an `X-HTTP-Method-Override` header.
+ if (options.emulateHTTP && (type === 'PUT' || type === 'DELETE' || type === 'PATCH')) {
+ params.type = 'POST';
+ if (options.emulateJSON) params.data._method = type;
+ var beforeSend = options.beforeSend;
+ options.beforeSend = function(xhr) {
+ xhr.setRequestHeader('X-HTTP-Method-Override', type);
+ if (beforeSend) return beforeSend.apply(this, arguments);
+ };
+ }
+
+ // Don't process data on a non-GET request.
+ if (params.type !== 'GET' && !options.emulateJSON) {
+ params.processData = false;
+ }
+
+ // If we're sending a `PATCH` request, and we're in an old Internet Explorer
+ // that still has ActiveX enabled by default, override jQuery to use that
+ // for XHR instead. Remove this line when jQuery supports `PATCH` on IE8.
+ if (params.type === 'PATCH' && noXhrPatch) {
+ params.xhr = function() {
+ return new ActiveXObject("Microsoft.XMLHTTP");
+ };
+ }
+
+ // Make the request, allowing the user to override any Ajax options.
+ var xhr = options.xhr = Backbone.ajax(_.extend(params, options));
+ model.trigger('request', model, xhr, options);
+ return xhr;
+ };
+
+ var noXhrPatch = typeof window !== 'undefined' && !!window.ActiveXObject && !(window.XMLHttpRequest && (new XMLHttpRequest).dispatchEvent);
+
+ // Map from CRUD to HTTP for our default `Backbone.sync` implementation.
+ var methodMap = {
+ 'create': 'POST',
+ 'update': 'PUT',
+ 'patch': 'PATCH',
+ 'delete': 'DELETE',
+ 'read': 'GET'
+ };
+
+ // Set the default implementation of `Backbone.ajax` to proxy through to `$`.
+ // Override this if you'd like to use a different library.
+ Backbone.ajax = function() {
+ return Backbone.$.ajax.apply(Backbone.$, arguments);
+ };
+
+ // Backbone.Router
+ // ---------------
+
+ // Routers map faux-URLs to actions, and fire events when routes are
+ // matched. Creating a new one sets its `routes` hash, if not set statically.
+ var Router = Backbone.Router = function(options) {
+ options || (options = {});
+ if (options.routes) this.routes = options.routes;
+ this._bindRoutes();
+ this.initialize.apply(this, arguments);
+ };
+
+ // Cached regular expressions for matching named param parts and splatted
+ // parts of route strings.
+ var optionalParam = /\((.*?)\)/g;
+ var namedParam = /(\(\?)?:\w+/g;
+ var splatParam = /\*\w+/g;
+ var escapeRegExp = /[\-{}\[\]+?.,\\\^$|#\s]/g;
+
+ // Set up all inheritable **Backbone.Router** properties and methods.
+ _.extend(Router.prototype, Events, {
+
+ // Initialize is an empty function by default. Override it with your own
+ // initialization logic.
+ initialize: function(){},
+
+ // Manually bind a single named route to a callback. For example:
+ //
+ // this.route('search/:query/p:num', 'search', function(query, num) {
+ // ...
+ // });
+ //
+ route: function(route, name, callback) {
+ if (!_.isRegExp(route)) route = this._routeToRegExp(route);
+ if (_.isFunction(name)) {
+ callback = name;
+ name = '';
+ }
+ if (!callback) callback = this[name];
+ var router = this;
+ Backbone.history.route(route, function(fragment) {
+ var args = router._extractParameters(route, fragment);
+ callback && callback.apply(router, args);
+ router.trigger.apply(router, ['route:' + name].concat(args));
+ router.trigger('route', name, args);
+ Backbone.history.trigger('route', router, name, args);
+ });
+ return this;
+ },
+
+ // Simple proxy to `Backbone.history` to save a fragment into the history.
+ navigate: function(fragment, options) {
+ Backbone.history.navigate(fragment, options);
+ return this;
+ },
+
+ // Bind all defined routes to `Backbone.history`. We have to reverse the
+ // order of the routes here to support behavior where the most general
+ // routes can be defined at the bottom of the route map.
+ _bindRoutes: function() {
+ if (!this.routes) return;
+ this.routes = _.result(this, 'routes');
+ var route, routes = _.keys(this.routes);
+ while ((route = routes.pop()) != null) {
+ this.route(route, this.routes[route]);
+ }
+ },
+
+ // Convert a route string into a regular expression, suitable for matching
+ // against the current location hash.
+ _routeToRegExp: function(route) {
+ route = route.replace(escapeRegExp, '\\$&')
+ .replace(optionalParam, '(?:$1)?')
+ .replace(namedParam, function(match, optional) {
+ return optional ? match : '([^\/]+)';
+ })
+ .replace(splatParam, '(.*?)');
+ return new RegExp('^' + route + '$');
+ },
+
+ // Given a route, and a URL fragment that it matches, return the array of
+ // extracted decoded parameters. Empty or unmatched parameters will be
+ // treated as `null` to normalize cross-browser behavior.
+ _extractParameters: function(route, fragment) {
+ var params = route.exec(fragment).slice(1);
+ return _.map(params, function(param) {
+ return param ? decodeURIComponent(param) : null;
+ });
+ }
+
+ });
+
+ // Backbone.History
+ // ----------------
+
+ // Handles cross-browser history management, based on either
+ // [pushState](http://diveintohtml5.info/history.html) and real URLs, or
+ // [onhashchange](https://developer.mozilla.org/en-US/docs/DOM/window.onhashchange)
+ // and URL fragments. If the browser supports neither (old IE, natch),
+ // falls back to polling.
+ var History = Backbone.History = function() {
+ this.handlers = [];
+ _.bindAll(this, 'checkUrl');
+
+ // Ensure that `History` can be used outside of the browser.
+ if (typeof window !== 'undefined') {
+ this.location = window.location;
+ this.history = window.history;
+ }
+ };
+
+ // Cached regex for stripping a leading hash/slash and trailing space.
+ var routeStripper = /^[#\/]|\s+$/g;
+
+ // Cached regex for stripping leading and trailing slashes.
+ var rootStripper = /^\/+|\/+$/g;
+
+ // Cached regex for detecting MSIE.
+ var isExplorer = /msie [\w.]+/;
+
+ // Cached regex for removing a trailing slash.
+ var trailingSlash = /\/$/;
+
+ // Cached regex for stripping urls of hash and query.
+ var pathStripper = /[?#].*$/;
+
+ // Has the history handling already been started?
+ History.started = false;
+
+ // Set up all inheritable **Backbone.History** properties and methods.
+ _.extend(History.prototype, Events, {
+
+ // The default interval to poll for hash changes, if necessary, is
+ // twenty times a second.
+ interval: 50,
+
+ // Gets the true hash value. Cannot use location.hash directly due to bug
+ // in Firefox where location.hash will always be decoded.
+ getHash: function(window) {
+ var match = (window || this).location.href.match(/#(.*)$/);
+ return match ? match[1] : '';
+ },
+
+ // Get the cross-browser normalized URL fragment, either from the URL,
+ // the hash, or the override.
+ getFragment: function(fragment, forcePushState) {
+ if (fragment == null) {
+ if (this._hasPushState || !this._wantsHashChange || forcePushState) {
+ fragment = this.location.pathname;
+ var root = this.root.replace(trailingSlash, '');
+ if (!fragment.indexOf(root)) fragment = fragment.slice(root.length);
+ } else {
+ fragment = this.getHash();
+ }
+ }
+ return fragment.replace(routeStripper, '');
+ },
+
+ // Start the hash change handling, returning `true` if the current URL matches
+ // an existing route, and `false` otherwise.
+ start: function(options) {
+ if (History.started) throw new Error("Backbone.history has already been started");
+ History.started = true;
+
+ // Figure out the initial configuration. Do we need an iframe?
+ // Is pushState desired ... is it available?
+ this.options = _.extend({root: '/'}, this.options, options);
+ this.root = this.options.root;
+ this._wantsHashChange = this.options.hashChange !== false;
+ this._wantsPushState = !!this.options.pushState;
+ this._hasPushState = !!(this.options.pushState && this.history && this.history.pushState);
+ var fragment = this.getFragment();
+ var docMode = document.documentMode;
+ var oldIE = (isExplorer.exec(navigator.userAgent.toLowerCase()) && (!docMode || docMode <= 7));
+
+ // Normalize root to always include a leading and trailing slash.
+ this.root = ('/' + this.root + '/').replace(rootStripper, '/');
+
+ if (oldIE && this._wantsHashChange) {
+ this.iframe = Backbone.$('<iframe src="javascript:0" tabindex="-1" />').hide().appendTo('body')[0].contentWindow;
+ this.navigate(fragment);
+ }
+
+ // Depending on whether we're using pushState or hashes, and whether
+ // 'onhashchange' is supported, determine how we check the URL state.
+ if (this._hasPushState) {
+ Backbone.$(window).on('popstate', this.checkUrl);
+ } else if (this._wantsHashChange && ('onhashchange' in window) && !oldIE) {
+ Backbone.$(window).on('hashchange', this.checkUrl);
+ } else if (this._wantsHashChange) {
+ this._checkUrlInterval = setInterval(this.checkUrl, this.interval);
+ }
+
+ // Determine if we need to change the base url, for a pushState link
+ // opened by a non-pushState browser.
+ this.fragment = fragment;
+ var loc = this.location;
+ var atRoot = loc.pathname.replace(/[^\/]$/, '$&/') === this.root;
+
+ // Transition from hashChange to pushState or vice versa if both are
+ // requested.
+ if (this._wantsHashChange && this._wantsPushState) {
+
+ // If we've started off with a route from a `pushState`-enabled
+ // browser, but we're currently in a browser that doesn't support it...
+ if (!this._hasPushState && !atRoot) {
+ this.fragment = this.getFragment(null, true);
+ this.location.replace(this.root + this.location.search + '#' + this.fragment);
+ // Return immediately as browser will do redirect to new url
+ return true;
+
+ // Or if we've started out with a hash-based route, but we're currently
+ // in a browser where it could be `pushState`-based instead...
+ } else if (this._hasPushState && atRoot && loc.hash) {
+ this.fragment = this.getHash().replace(routeStripper, '');
+ this.history.replaceState({}, document.title, this.root + this.fragment + loc.search);
+ }
+
+ }
+
+ if (!this.options.silent) return this.loadUrl();
+ },
+
+ // Disable Backbone.history, perhaps temporarily. Not useful in a real app,
+ // but possibly useful for unit testing Routers.
+ stop: function() {
+ Backbone.$(window).off('popstate', this.checkUrl).off('hashchange', this.checkUrl);
+ clearInterval(this._checkUrlInterval);
+ History.started = false;
+ },
+
+ // Add a route to be tested when the fragment changes. Routes added later
+ // may override previous routes.
+ route: function(route, callback) {
+ this.handlers.unshift({route: route, callback: callback});
+ },
+
+ // Checks the current URL to see if it has changed, and if it has,
+ // calls `loadUrl`, normalizing across the hidden iframe.
+ checkUrl: function(e) {
+ var current = this.getFragment();
+ if (current === this.fragment && this.iframe) {
+ current = this.getFragment(this.getHash(this.iframe));
+ }
+ if (current === this.fragment) return false;
+ if (this.iframe) this.navigate(current);
+ this.loadUrl();
+ },
+
+ // Attempt to load the current URL fragment. If a route succeeds with a
+ // match, returns `true`. If no defined routes matches the fragment,
+ // returns `false`.
+ loadUrl: function(fragment) {
+ fragment = this.fragment = this.getFragment(fragment);
+ return _.any(this.handlers, function(handler) {
+ if (handler.route.test(fragment)) {
+ handler.callback(fragment);
+ return true;
+ }
+ });
+ },
+
+ // Save a fragment into the hash history, or replace the URL state if the
+ // 'replace' option is passed. You are responsible for properly URL-encoding
+ // the fragment in advance.
+ //
+ // The options object can contain `trigger: true` if you wish to have the
+ // route callback be fired (not usually desirable), or `replace: true`, if
+ // you wish to modify the current URL without adding an entry to the history.
+ navigate: function(fragment, options) {
+ if (!History.started) return false;
+ if (!options || options === true) options = {trigger: !!options};
+
+ var url = this.root + (fragment = this.getFragment(fragment || ''));
+
+ // Strip the fragment of the query and hash for matching.
+ fragment = fragment.replace(pathStripper, '');
+
+ if (this.fragment === fragment) return;
+ this.fragment = fragment;
+
+ // Don't include a trailing slash on the root.
+ if (fragment === '' && url !== '/') url = url.slice(0, -1);
+
+ // If pushState is available, we use it to set the fragment as a real URL.
+ if (this._hasPushState) {
+ this.history[options.replace ? 'replaceState' : 'pushState']({}, document.title, url);
+
+ // If hash changes haven't been explicitly disabled, update the hash
+ // fragment to store history.
+ } else if (this._wantsHashChange) {
+ this._updateHash(this.location, fragment, options.replace);
+ if (this.iframe && (fragment !== this.getFragment(this.getHash(this.iframe)))) {
+ // Opening and closing the iframe tricks IE7 and earlier to push a
+ // history entry on hash-tag change. When replace is true, we don't
+ // want this.
+ if(!options.replace) this.iframe.document.open().close();
+ this._updateHash(this.iframe.location, fragment, options.replace);
+ }
+
+ // If you've told us that you explicitly don't want fallback hashchange-
+ // based history, then `navigate` becomes a page refresh.
+ } else {
+ return this.location.assign(url);
+ }
+ if (options.trigger) return this.loadUrl(fragment);
+ },
+
+ // Update the hash location, either replacing the current entry, or adding
+ // a new one to the browser history.
+ _updateHash: function(location, fragment, replace) {
+ if (replace) {
+ var href = location.href.replace(/(javascript:|#).*$/, '');
+ location.replace(href + '#' + fragment);
+ } else {
+ // Some browsers require that `hash` contains a leading #.
+ location.hash = '#' + fragment;
+ }
+ }
+
+ });
+
+ // Create the default Backbone.history.
+ Backbone.history = new History;
+
+ // Helpers
+ // -------
+
+ // Helper function to correctly set up the prototype chain, for subclasses.
+ // Similar to `goog.inherits`, but uses a hash of prototype properties and
+ // class properties to be extended.
+ var extend = function(protoProps, staticProps) {
+ var parent = this;
+ var child;
+
+ // The constructor function for the new subclass is either defined by you
+ // (the "constructor" property in your `extend` definition), or defaulted
+ // by us to simply call the parent's constructor.
+ if (protoProps && _.has(protoProps, 'constructor')) {
+ child = protoProps.constructor;
+ } else {
+ child = function(){ return parent.apply(this, arguments); };
+ }
+
+ // Add static properties to the constructor function, if supplied.
+ _.extend(child, parent, staticProps);
+
+ // Set the prototype chain to inherit from `parent`, without calling
+ // `parent`'s constructor function.
+ var Surrogate = function(){ this.constructor = child; };
+ Surrogate.prototype = parent.prototype;
+ child.prototype = new Surrogate;
+
+ // Add prototype properties (instance properties) to the subclass,
+ // if supplied.
+ if (protoProps) _.extend(child.prototype, protoProps);
+
+ // Set a convenience property in case the parent's prototype is needed
+ // later.
+ child.__super__ = parent.prototype;
+
+ return child;
+ };
+
+ // Set up inheritance for the model, collection, router, view and history.
+ Model.extend = Collection.extend = Router.extend = View.extend = History.extend = extend;
+
+ // Throw an error when a URL is needed, and none is supplied.
+ var urlError = function() {
+ throw new Error('A "url" property or function must be specified');
+ };
+
+ // Wrap an optional error callback with a fallback error event.
+ var wrapError = function(model, options) {
+ var error = options.error;
+ options.error = function(resp) {
+ if (error) error(model, resp, options);
+ model.trigger('error', model, resp, options);
+ };
+ };
+
+}).call(this);
A => static/index.html +13 -0
@@ 0,0 1,13 @@
+<html>
+ <head>
+ <script src="jquery-1.10.2.js"></script>
+ <script src="underscore.js"></script>
+ <script src="backbone.js"></script>
+ <script src="js.js"></script>
+ </head>
+ <body>
+ hello world
+ <div id="links"></div>
+ <div id="doc"></div>
+ </body>
+</html>
A => static/jquery-1.10.2.js +9789 -0
@@ 0,0 1,9789 @@
+/*!
+ * jQuery JavaScript Library v1.10.2
+ * http://jquery.com/
+ *
+ * Includes Sizzle.js
+ * http://sizzlejs.com/
+ *
+ * Copyright 2005, 2013 jQuery Foundation, Inc. and other contributors
+ * Released under the MIT license
+ * http://jquery.org/license
+ *
+ * Date: 2013-07-03T13:48Z
+ */
+(function( window, undefined ) {
+
+// Can't do this because several apps including ASP.NET trace
+// the stack via arguments.caller.callee and Firefox dies if
+// you try to trace through "use strict" call chains. (#13335)
+// Support: Firefox 18+
+//"use strict";
+var
+ // The deferred used on DOM ready
+ readyList,
+
+ // A central reference to the root jQuery(document)
+ rootjQuery,
+
+ // Support: IE<10
+ // For `typeof xmlNode.method` instead of `xmlNode.method !== undefined`
+ core_strundefined = typeof undefined,
+
+ // Use the correct document accordingly with window argument (sandbox)
+ location = window.location,
+ document = window.document,
+ docElem = document.documentElement,
+
+ // Map over jQuery in case of overwrite
+ _jQuery = window.jQuery,
+
+ // Map over the $ in case of overwrite
+ _$ = window.$,
+
+ // [[Class]] -> type pairs
+ class2type = {},
+
+ // List of deleted data cache ids, so we can reuse them
+ core_deletedIds = [],
+
+ core_version = "1.10.2",
+
+ // Save a reference to some core methods
+ core_concat = core_deletedIds.concat,
+ core_push = core_deletedIds.push,
+ core_slice = core_deletedIds.slice,
+ core_indexOf = core_deletedIds.indexOf,
+ core_toString = class2type.toString,
+ core_hasOwn = class2type.hasOwnProperty,
+ core_trim = core_version.trim,
+
+ // Define a local copy of jQuery
+ jQuery = function( selector, context ) {
+ // The jQuery object is actually just the init constructor 'enhanced'
+ return new jQuery.fn.init( selector, context, rootjQuery );
+ },
+
+ // Used for matching numbers
+ core_pnum = /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/.source,
+
+ // Used for splitting on whitespace
+ core_rnotwhite = /\S+/g,
+
+ // Make sure we trim BOM and NBSP (here's looking at you, Safari 5.0 and IE)
+ rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g,
+
+ // A simple way to check for HTML strings
+ // Prioritize #id over <tag> to avoid XSS via location.hash (#9521)
+ // Strict HTML recognition (#11290: must start with <)
+ rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]*))$/,
+
+ // Match a standalone tag
+ rsingleTag = /^<(\w+)\s*\/?>(?:<\/\1>|)$/,
+
+ // JSON RegExp
+ rvalidchars = /^[\],:{}\s]*$/,
+ rvalidbraces = /(?:^|:|,)(?:\s*\[)+/g,
+ rvalidescape = /\\(?:["\\\/bfnrt]|u[\da-fA-F]{4})/g,
+ rvalidtokens = /"[^"\\\r\n]*"|true|false|null|-?(?:\d+\.|)\d+(?:[eE][+-]?\d+|)/g,
+
+ // Matches dashed string for camelizing
+ rmsPrefix = /^-ms-/,
+ rdashAlpha = /-([\da-z])/gi,
+
+ // Used by jQuery.camelCase as callback to replace()
+ fcamelCase = function( all, letter ) {
+ return letter.toUpperCase();
+ },
+
+ // The ready event handler
+ completed = function( event ) {
+
+ // readyState === "complete" is good enough for us to call the dom ready in oldIE
+ if ( document.addEventListener || event.type === "load" || document.readyState === "complete" ) {
+ detach();
+ jQuery.ready();
+ }
+ },
+ // Clean-up method for dom ready events
+ detach = function() {
+ if ( document.addEventListener ) {
+ document.removeEventListener( "DOMContentLoaded", completed, false );
+ window.removeEventListener( "load", completed, false );
+
+ } else {
+ document.detachEvent( "onreadystatechange", completed );
+ window.detachEvent( "onload", completed );
+ }
+ };
+
+jQuery.fn = jQuery.prototype = {
+ // The current version of jQuery being used
+ jquery: core_version,
+
+ constructor: jQuery,
+ init: function( selector, context, rootjQuery ) {
+ var match, elem;
+
+ // HANDLE: $(""), $(null), $(undefined), $(false)
+ if ( !selector ) {
+ return this;
+ }
+
+ // Handle HTML strings
+ if ( typeof selector === "string" ) {
+ if ( selector.charAt(0) === "<" && selector.charAt( selector.length - 1 ) === ">" && selector.length >= 3 ) {
+ // Assume that strings that start and end with <> are HTML and skip the regex check
+ match = [ null, selector, null ];
+
+ } else {
+ match = rquickExpr.exec( selector );
+ }
+
+ // Match html or make sure no context is specified for #id
+ if ( match && (match[1] || !context) ) {
+
+ // HANDLE: $(html) -> $(array)
+ if ( match[1] ) {
+ context = context instanceof jQuery ? context[0] : context;
+
+ // scripts is true for back-compat
+ jQuery.merge( this, jQuery.parseHTML(
+ match[1],
+ context && context.nodeType ? context.ownerDocument || context : document,
+ true
+ ) );
+
+ // HANDLE: $(html, props)
+ if ( rsingleTag.test( match[1] ) && jQuery.isPlainObject( context ) ) {
+ for ( match in context ) {
+ // Properties of context are called as methods if possible
+ if ( jQuery.isFunction( this[ match ] ) ) {
+ this[ match ]( context[ match ] );
+
+ // ...and otherwise set as attributes
+ } else {
+ this.attr( match, context[ match ] );
+ }
+ }
+ }
+
+ return this;
+
+ // HANDLE: $(#id)
+ } else {
+ elem = document.getElementById( match[2] );
+
+ // Check parentNode to catch when Blackberry 4.6 returns
+ // nodes that are no longer in the document #6963
+ if ( elem && elem.parentNode ) {
+ // Handle the case where IE and Opera return items
+ // by name instead of ID
+ if ( elem.id !== match[2] ) {
+ return rootjQuery.find( selector );
+ }
+
+ // Otherwise, we inject the element directly into the jQuery object
+ this.length = 1;
+ this[0] = elem;
+ }
+
+ this.context = document;
+ this.selector = selector;
+ return this;
+ }
+
+ // HANDLE: $(expr, $(...))
+ } else if ( !context || context.jquery ) {
+ return ( context || rootjQuery ).find( selector );
+
+ // HANDLE: $(expr, context)
+ // (which is just equivalent to: $(context).find(expr)
+ } else {
+ return this.constructor( context ).find( selector );
+ }
+
+ // HANDLE: $(DOMElement)
+ } else if ( selector.nodeType ) {
+ this.context = this[0] = selector;
+ this.length = 1;
+ return this;
+
+ // HANDLE: $(function)
+ // Shortcut for document ready
+ } else if ( jQuery.isFunction( selector ) ) {
+ return rootjQuery.ready( selector );
+ }
+
+ if ( selector.selector !== undefined ) {
+ this.selector = selector.selector;
+ this.context = selector.context;
+ }
+
+ return jQuery.makeArray( selector, this );
+ },
+
+ // Start with an empty selector
+ selector: "",
+
+ // The default length of a jQuery object is 0
+ length: 0,
+
+ toArray: function() {
+ return core_slice.call( this );
+ },
+
+ // Get the Nth element in the matched element set OR
+ // Get the whole matched element set as a clean array
+ get: function( num ) {
+ return num == null ?
+
+ // Return a 'clean' array
+ this.toArray() :
+
+ // Return just the object
+ ( num < 0 ? this[ this.length + num ] : this[ num ] );
+ },
+
+ // Take an array of elements and push it onto the stack
+ // (returning the new matched element set)
+ pushStack: function( elems ) {
+
+ // Build a new jQuery matched element set
+ var ret = jQuery.merge( this.constructor(), elems );
+
+ // Add the old object onto the stack (as a reference)
+ ret.prevObject = this;
+ ret.context = this.context;
+
+ // Return the newly-formed element set
+ return ret;
+ },
+
+ // Execute a callback for every element in the matched set.
+ // (You can seed the arguments with an array of args, but this is
+ // only used internally.)
+ each: function( callback, args ) {
+ return jQuery.each( this, callback, args );
+ },
+
+ ready: function( fn ) {
+ // Add the callback
+ jQuery.ready.promise().done( fn );
+
+ return this;
+ },
+
+ slice: function() {
+ return this.pushStack( core_slice.apply( this, arguments ) );
+ },
+
+ first: function() {
+ return this.eq( 0 );
+ },
+
+ last: function() {
+ return this.eq( -1 );
+ },
+
+ eq: function( i ) {
+ var len = this.length,
+ j = +i + ( i < 0 ? len : 0 );
+ return this.pushStack( j >= 0 && j < len ? [ this[j] ] : [] );
+ },
+
+ map: function( callback ) {
+ return this.pushStack( jQuery.map(this, function( elem, i ) {
+ return callback.call( elem, i, elem );
+ }));
+ },
+
+ end: function() {
+ return this.prevObject || this.constructor(null);
+ },
+
+ // For internal use only.
+ // Behaves like an Array's method, not like a jQuery method.
+ push: core_push,
+ sort: [].sort,
+ splice: [].splice
+};
+
+// Give the init function the jQuery prototype for later instantiation
+jQuery.fn.init.prototype = jQuery.fn;
+
+jQuery.extend = jQuery.fn.extend = function() {
+ var src, copyIsArray, copy, name, options, clone,
+ target = arguments[0] || {},
+ i = 1,
+ length = arguments.length,
+ deep = false;
+
+ // Handle a deep copy situation
+ if ( typeof target === "boolean" ) {
+ deep = target;
+ target = arguments[1] || {};
+ // skip the boolean and the target
+ i = 2;
+ }
+
+ // Handle case when target is a string or something (possible in deep copy)
+ if ( typeof target !== "object" && !jQuery.isFunction(target) ) {
+ target = {};
+ }
+
+ // extend jQuery itself if only one argument is passed
+ if ( length === i ) {
+ target = this;
+ --i;
+ }
+
+ for ( ; i < length; i++ ) {
+ // Only deal with non-null/undefined values
+ if ( (options = arguments[ i ]) != null ) {
+ // Extend the base object
+ for ( name in options ) {
+ src = target[ name ];
+ copy = options[ name ];
+
+ // Prevent never-ending loop
+ if ( target === copy ) {
+ continue;
+ }
+
+ // Recurse if we're merging plain objects or arrays
+ if ( deep && copy && ( jQuery.isPlainObject(copy) || (copyIsArray = jQuery.isArray(copy)) ) ) {
+ if ( copyIsArray ) {
+ copyIsArray = false;
+ clone = src && jQuery.isArray(src) ? src : [];
+
+ } else {
+ clone = src && jQuery.isPlainObject(src) ? src : {};
+ }
+
+ // Never move original objects, clone them
+ target[ name ] = jQuery.extend( deep, clone, copy );
+
+ // Don't bring in undefined values
+ } else if ( copy !== undefined ) {
+ target[ name ] = copy;
+ }
+ }
+ }
+ }
+
+ // Return the modified object
+ return target;
+};
+
+jQuery.extend({
+ // Unique for each copy of jQuery on the page
+ // Non-digits removed to match rinlinejQuery
+ expando: "jQuery" + ( core_version + Math.random() ).replace( /\D/g, "" ),
+
+ noConflict: function( deep ) {
+ if ( window.$ === jQuery ) {
+ window.$ = _$;
+ }
+
+ if ( deep && window.jQuery === jQuery ) {
+ window.jQuery = _jQuery;
+ }
+
+ return jQuery;
+ },
+
+ // Is the DOM ready to be used? Set to true once it occurs.
+ isReady: false,
+
+ // A counter to track how many items to wait for before
+ // the ready event fires. See #6781
+ readyWait: 1,
+
+ // Hold (or release) the ready event
+ holdReady: function( hold ) {
+ if ( hold ) {
+ jQuery.readyWait++;
+ } else {
+ jQuery.ready( true );
+ }
+ },
+
+ // Handle when the DOM is ready
+ ready: function( wait ) {
+
+ // Abort if there are pending holds or we're already ready
+ if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) {
+ return;
+ }
+
+ // Make sure body exists, at least, in case IE gets a little overzealous (ticket #5443).
+ if ( !document.body ) {
+ return setTimeout( jQuery.ready );
+ }
+
+ // Remember that the DOM is ready
+ jQuery.isReady = true;
+
+ // If a normal DOM Ready event fired, decrement, and wait if need be
+ if ( wait !== true && --jQuery.readyWait > 0 ) {
+ return;
+ }
+
+ // If there are functions bound, to execute
+ readyList.resolveWith( document, [ jQuery ] );
+
+ // Trigger any bound ready events
+ if ( jQuery.fn.trigger ) {
+ jQuery( document ).trigger("ready").off("ready");
+ }
+ },
+
+ // See test/unit/core.js for details concerning isFunction.
+ // Since version 1.3, DOM methods and functions like alert
+ // aren't supported. They return false on IE (#2968).
+ isFunction: function( obj ) {
+ return jQuery.type(obj) === "function";
+ },
+
+ isArray: Array.isArray || function( obj ) {
+ return jQuery.type(obj) === "array";
+ },
+
+ isWindow: function( obj ) {
+ /* jshint eqeqeq: false */
+ return obj != null && obj == obj.window;
+ },
+
+ isNumeric: function( obj ) {
+ return !isNaN( parseFloat(obj) ) && isFinite( obj );
+ },
+
+ type: function( obj ) {
+ if ( obj == null ) {
+ return String( obj );
+ }
+ return typeof obj === "object" || typeof obj === "function" ?
+ class2type[ core_toString.call(obj) ] || "object" :
+ typeof obj;
+ },
+
+ isPlainObject: function( obj ) {
+ var key;
+
+ // Must be an Object.
+ // Because of IE, we also have to check the presence of the constructor property.
+ // Make sure that DOM nodes and window objects don't pass through, as well
+ if ( !obj || jQuery.type(obj) !== "object" || obj.nodeType || jQuery.isWindow( obj ) ) {
+ return false;
+ }
+
+ try {
+ // Not own constructor property must be Object
+ if ( obj.constructor &&
+ !core_hasOwn.call(obj, "constructor") &&
+ !core_hasOwn.call(obj.constructor.prototype, "isPrototypeOf") ) {
+ return false;
+ }
+ } catch ( e ) {
+ // IE8,9 Will throw exceptions on certain host objects #9897
+ return false;
+ }
+
+ // Support: IE<9
+ // Handle iteration over inherited properties before own properties.
+ if ( jQuery.support.ownLast ) {
+ for ( key in obj ) {
+ return core_hasOwn.call( obj, key );
+ }
+ }
+
+ // Own properties are enumerated firstly, so to speed up,
+ // if last one is own, then all properties are own.
+ for ( key in obj ) {}
+
+ return key === undefined || core_hasOwn.call( obj, key );
+ },
+
+ isEmptyObject: function( obj ) {
+ var name;
+ for ( name in obj ) {
+ return false;
+ }
+ return true;
+ },
+
+ error: function( msg ) {
+ throw new Error( msg );
+ },
+
+ // data: string of html
+ // context (optional): If specified, the fragment will be created in this context, defaults to document
+ // keepScripts (optional): If true, will include scripts passed in the html string
+ parseHTML: function( data, context, keepScripts ) {
+ if ( !data || typeof data !== "string" ) {
+ return null;
+ }
+ if ( typeof context === "boolean" ) {
+ keepScripts = context;
+ context = false;
+ }
+ context = context || document;
+
+ var parsed = rsingleTag.exec( data ),
+ scripts = !keepScripts && [];
+
+ // Single tag
+ if ( parsed ) {
+ return [ context.createElement( parsed[1] ) ];
+ }
+
+ parsed = jQuery.buildFragment( [ data ], context, scripts );
+ if ( scripts ) {
+ jQuery( scripts ).remove();
+ }
+ return jQuery.merge( [], parsed.childNodes );
+ },
+
+ parseJSON: function( data ) {
+ // Attempt to parse using the native JSON parser first
+ if ( window.JSON && window.JSON.parse ) {
+ return window.JSON.parse( data );
+ }
+
+ if ( data === null ) {
+ return data;
+ }
+
+ if ( typeof data === "string" ) {
+
+ // Make sure leading/trailing whitespace is removed (IE can't handle it)
+ data = jQuery.trim( data );
+
+ if ( data ) {
+ // Make sure the incoming data is actual JSON
+ // Logic borrowed from http://json.org/json2.js
+ if ( rvalidchars.test( data.replace( rvalidescape, "@" )
+ .replace( rvalidtokens, "]" )
+ .replace( rvalidbraces, "")) ) {
+
+ return ( new Function( "return " + data ) )();
+ }
+ }
+ }
+
+ jQuery.error( "Invalid JSON: " + data );
+ },
+
+ // Cross-browser xml parsing
+ parseXML: function( data ) {
+ var xml, tmp;
+ if ( !data || typeof data !== "string" ) {
+ return null;
+ }
+ try {
+ if ( window.DOMParser ) { // Standard
+ tmp = new DOMParser();
+ xml = tmp.parseFromString( data , "text/xml" );
+ } else { // IE
+ xml = new ActiveXObject( "Microsoft.XMLDOM" );
+ xml.async = "false";
+ xml.loadXML( data );
+ }
+ } catch( e ) {
+ xml = undefined;
+ }
+ if ( !xml || !xml.documentElement || xml.getElementsByTagName( "parsererror" ).length ) {
+ jQuery.error( "Invalid XML: " + data );
+ }
+ return xml;
+ },
+
+ noop: function() {},
+
+ // Evaluates a script in a global context
+ // Workarounds based on findings by Jim Driscoll
+ // http://weblogs.java.net/blog/driscoll/archive/2009/09/08/eval-javascript-global-context
+ globalEval: function( data ) {
+ if ( data && jQuery.trim( data ) ) {
+ // We use execScript on Internet Explorer
+ // We use an anonymous function so that context is window
+ // rather than jQuery in Firefox
+ ( window.execScript || function( data ) {
+ window[ "eval" ].call( window, data );
+ } )( data );
+ }
+ },
+
+ // Convert dashed to camelCase; used by the css and data modules
+ // Microsoft forgot to hump their vendor prefix (#9572)
+ camelCase: function( string ) {
+ return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase );
+ },
+
+ nodeName: function( elem, name ) {
+ return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();
+ },
+
+ // args is for internal usage only
+ each: function( obj, callback, args ) {
+ var value,
+ i = 0,
+ length = obj.length,
+ isArray = isArraylike( obj );
+
+ if ( args ) {
+ if ( isArray ) {
+ for ( ; i < length; i++ ) {
+ value = callback.apply( obj[ i ], args );
+
+ if ( value === false ) {
+ break;
+ }
+ }
+ } else {
+ for ( i in obj ) {
+ value = callback.apply( obj[ i ], args );
+
+ if ( value === false ) {
+ break;
+ }
+ }
+ }
+
+ // A special, fast, case for the most common use of each
+ } else {
+ if ( isArray ) {
+ for ( ; i < length; i++ ) {
+ value = callback.call( obj[ i ], i, obj[ i ] );
+
+ if ( value === false ) {
+ break;
+ }
+ }
+ } else {
+ for ( i in obj ) {
+ value = callback.call( obj[ i ], i, obj[ i ] );
+
+ if ( value === false ) {
+ break;
+ }
+ }
+ }
+ }
+
+ return obj;
+ },
+
+ // Use native String.trim function wherever possible
+ trim: core_trim && !core_trim.call("\uFEFF\xA0") ?
+ function( text ) {
+ return text == null ?
+ "" :
+ core_trim.call( text );
+ } :
+
+ // Otherwise use our own trimming functionality
+ function( text ) {
+ return text == null ?
+ "" :
+ ( text + "" ).replace( rtrim, "" );
+ },
+
+ // results is for internal usage only
+ makeArray: function( arr, results ) {
+ var ret = results || [];
+
+ if ( arr != null ) {
+ if ( isArraylike( Object(arr) ) ) {
+ jQuery.merge( ret,
+ typeof arr === "string" ?
+ [ arr ] : arr
+ );
+ } else {
+ core_push.call( ret, arr );
+ }
+ }
+
+ return ret;
+ },
+
+ inArray: function( elem, arr, i ) {
+ var len;
+
+ if ( arr ) {
+ if ( core_indexOf ) {
+ return core_indexOf.call( arr, elem, i );
+ }
+
+ len = arr.length;
+ i = i ? i < 0 ? Math.max( 0, len + i ) : i : 0;
+
+ for ( ; i < len; i++ ) {
+ // Skip accessing in sparse arrays
+ if ( i in arr && arr[ i ] === elem ) {
+ return i;
+ }
+ }
+ }
+
+ return -1;
+ },
+
+ merge: function( first, second ) {
+ var l = second.length,
+ i = first.length,
+ j = 0;
+
+ if ( typeof l === "number" ) {
+ for ( ; j < l; j++ ) {
+ first[ i++ ] = second[ j ];
+ }
+ } else {
+ while ( second[j] !== undefined ) {
+ first[ i++ ] = second[ j++ ];
+ }
+ }
+
+ first.length = i;
+
+ return first;
+ },
+
+ grep: function( elems, callback, inv ) {
+ var retVal,
+ ret = [],
+ i = 0,
+ length = elems.length;
+ inv = !!inv;
+
+ // Go through the array, only saving the items
+ // that pass the validator function
+ for ( ; i < length; i++ ) {
+ retVal = !!callback( elems[ i ], i );
+ if ( inv !== retVal ) {
+ ret.push( elems[ i ] );
+ }
+ }
+
+ return ret;
+ },
+
+ // arg is for internal usage only
+ map: function( elems, callback, arg ) {
+ var value,
+ i = 0,
+ length = elems.length,
+ isArray = isArraylike( elems ),
+ ret = [];
+
+ // Go through the array, translating each of the items to their
+ if ( isArray ) {
+ for ( ; i < length; i++ ) {
+ value = callback( elems[ i ], i, arg );
+
+ if ( value != null ) {
+ ret[ ret.length ] = value;
+ }
+ }
+
+ // Go through every key on the object,
+ } else {
+ for ( i in elems ) {
+ value = callback( elems[ i ], i, arg );
+
+ if ( value != null ) {
+ ret[ ret.length ] = value;
+ }
+ }
+ }
+
+ // Flatten any nested arrays
+ return core_concat.apply( [], ret );
+ },
+
+ // A global GUID counter for objects
+ guid: 1,
+
+ // Bind a function to a context, optionally partially applying any
+ // arguments.
+ proxy: function( fn, context ) {
+ var args, proxy, tmp;
+
+ if ( typeof context === "string" ) {
+ tmp = fn[ context ];
+ context = fn;
+ fn = tmp;
+ }
+
+ // Quick check to determine if target is callable, in the spec
+ // this throws a TypeError, but we will just return undefined.
+ if ( !jQuery.isFunction( fn ) ) {
+ return undefined;
+ }
+
+ // Simulated bind
+ args = core_slice.call( arguments, 2 );
+ proxy = function() {
+ return fn.apply( context || this, args.concat( core_slice.call( arguments ) ) );
+ };
+
+ // Set the guid of unique handler to the same of original handler, so it can be removed
+ proxy.guid = fn.guid = fn.guid || jQuery.guid++;
+
+ return proxy;
+ },
+
+ // Multifunctional method to get and set values of a collection
+ // The value/s can optionally be executed if it's a function
+ access: function( elems, fn, key, value, chainable, emptyGet, raw ) {
+ var i = 0,
+ length = elems.length,
+ bulk = key == null;
+
+ // Sets many values
+ if ( jQuery.type( key ) === "object" ) {
+ chainable = true;
+ for ( i in key ) {
+ jQuery.access( elems, fn, i, key[i], true, emptyGet, raw );
+ }
+
+ // Sets one value
+ } else if ( value !== undefined ) {
+ chainable = true;
+
+ if ( !jQuery.isFunction( value ) ) {
+ raw = true;
+ }
+
+ if ( bulk ) {
+ // Bulk operations run against the entire set
+ if ( raw ) {
+ fn.call( elems, value );
+ fn = null;
+
+ // ...except when executing function values
+ } else {
+ bulk = fn;
+ fn = function( elem, key, value ) {
+ return bulk.call( jQuery( elem ), value );
+ };
+ }
+ }
+
+ if ( fn ) {
+ for ( ; i < length; i++ ) {
+ fn( elems[i], key, raw ? value : value.call( elems[i], i, fn( elems[i], key ) ) );
+ }
+ }
+ }
+
+ return chainable ?
+ elems :
+
+ // Gets
+ bulk ?
+ fn.call( elems ) :
+ length ? fn( elems[0], key ) : emptyGet;
+ },
+
+ now: function() {
+ return ( new Date() ).getTime();
+ },
+
+ // A method for quickly swapping in/out CSS properties to get correct calculations.
+ // Note: this method belongs to the css module but it's needed here for the support module.
+ // If support gets modularized, this method should be moved back to the css module.
+ swap: function( elem, options, callback, args ) {
+ var ret, name,
+ old = {};
+
+ // Remember the old values, and insert the new ones
+ for ( name in options ) {
+ old[ name ] = elem.style[ name ];
+ elem.style[ name ] = options[ name ];
+ }
+
+ ret = callback.apply( elem, args || [] );
+
+ // Revert the old values
+ for ( name in options ) {
+ elem.style[ name ] = old[ name ];
+ }
+
+ return ret;
+ }
+});
+
+jQuery.ready.promise = function( obj ) {
+ if ( !readyList ) {
+
+ readyList = jQuery.Deferred();
+
+ // Catch cases where $(document).ready() is called after the browser event has already occurred.
+ // we once tried to use readyState "interactive" here, but it caused issues like the one
+ // discovered by ChrisS here: http://bugs.jquery.com/ticket/12282#comment:15
+ if ( document.readyState === "complete" ) {
+ // Handle it asynchronously to allow scripts the opportunity to delay ready
+ setTimeout( jQuery.ready );
+
+ // Standards-based browsers support DOMContentLoaded
+ } else if ( document.addEventListener ) {
+ // Use the handy event callback
+ document.addEventListener( "DOMContentLoaded", completed, false );
+
+ // A fallback to window.onload, that will always work
+ window.addEventListener( "load", completed, false );
+
+ // If IE event model is used
+ } else {
+ // Ensure firing before onload, maybe late but safe also for iframes
+ document.attachEvent( "onreadystatechange", completed );
+
+ // A fallback to window.onload, that will always work
+ window.attachEvent( "onload", completed );
+
+ // If IE and not a frame
+ // continually check to see if the document is ready
+ var top = false;
+
+ try {
+ top = window.frameElement == null && document.documentElement;
+ } catch(e) {}
+
+ if ( top && top.doScroll ) {
+ (function doScrollCheck() {
+ if ( !jQuery.isReady ) {
+
+ try {
+ // Use the trick by Diego Perini
+ // http://javascript.nwbox.com/IEContentLoaded/
+ top.doScroll("left");
+ } catch(e) {
+ return setTimeout( doScrollCheck, 50 );
+ }
+
+ // detach all dom ready events
+ detach();
+
+ // and execute any waiting functions
+ jQuery.ready();
+ }
+ })();
+ }
+ }
+ }
+ return readyList.promise( obj );
+};
+
+// Populate the class2type map
+jQuery.each("Boolean Number String Function Array Date RegExp Object Error".split(" "), function(i, name) {
+ class2type[ "[object " + name + "]" ] = name.toLowerCase();
+});
+
+function isArraylike( obj ) {
+ var length = obj.length,
+ type = jQuery.type( obj );
+
+ if ( jQuery.isWindow( obj ) ) {
+ return false;
+ }
+
+ if ( obj.nodeType === 1 && length ) {
+ return true;
+ }
+
+ return type === "array" || type !== "function" &&
+ ( length === 0 ||
+ typeof length === "number" && length > 0 && ( length - 1 ) in obj );
+}
+
+// All jQuery objects should point back to these
+rootjQuery = jQuery(document);
+/*!
+ * Sizzle CSS Selector Engine v1.10.2
+ * http://sizzlejs.com/
+ *
+ * Copyright 2013 jQuery Foundation, Inc. and other contributors
+ * Released under the MIT license
+ * http://jquery.org/license
+ *
+ * Date: 2013-07-03
+ */
+(function( window, undefined ) {
+
+var i,
+ support,
+ cachedruns,
+ Expr,
+ getText,
+ isXML,
+ compile,
+ outermostContext,
+ sortInput,
+
+ // Local document vars
+ setDocument,
+ document,
+ docElem,
+ documentIsHTML,
+ rbuggyQSA,
+ rbuggyMatches,
+ matches,
+ contains,
+
+ // Instance-specific data
+ expando = "sizzle" + -(new Date()),
+ preferredDoc = window.document,
+ dirruns = 0,
+ done = 0,
+ classCache = createCache(),
+ tokenCache = createCache(),
+ compilerCache = createCache(),
+ hasDuplicate = false,
+ sortOrder = function( a, b ) {
+ if ( a === b ) {
+ hasDuplicate = true;
+ return 0;
+ }
+ return 0;
+ },
+
+ // General-purpose constants
+ strundefined = typeof undefined,
+ MAX_NEGATIVE = 1 << 31,
+
+ // Instance methods
+ hasOwn = ({}).hasOwnProperty,
+ arr = [],
+ pop = arr.pop,
+ push_native = arr.push,
+ push = arr.push,
+ slice = arr.slice,
+ // Use a stripped-down indexOf if we can't use a native one
+ indexOf = arr.indexOf || function( elem ) {
+ var i = 0,
+ len = this.length;
+ for ( ; i < len; i++ ) {
+ if ( this[i] === elem ) {
+ return i;
+ }
+ }
+ return -1;
+ },
+
+ booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped",
+
+ // Regular expressions
+
+ // Whitespace characters http://www.w3.org/TR/css3-selectors/#whitespace
+ whitespace = "[\\x20\\t\\r\\n\\f]",
+ // http://www.w3.org/TR/css3-syntax/#characters
+ characterEncoding = "(?:\\\\.|[\\w-]|[^\\x00-\\xa0])+",
+
+ // Loosely modeled on CSS identifier characters
+ // An unquoted value should be a CSS identifier http://www.w3.org/TR/css3-selectors/#attribute-selectors
+ // Proper syntax: http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier
+ identifier = characterEncoding.replace( "w", "w#" ),
+
+ // Acceptable operators http://www.w3.org/TR/selectors/#attribute-selectors
+ attributes = "\\[" + whitespace + "*(" + characterEncoding + ")" + whitespace +
+ "*(?:([*^$|!~]?=)" + whitespace + "*(?:(['\"])((?:\\\\.|[^\\\\])*?)\\3|(" + identifier + ")|)|)" + whitespace + "*\\]",
+
+ // Prefer arguments quoted,
+ // then not containing pseudos/brackets,
+ // then attribute selectors/non-parenthetical expressions,
+ // then anything else
+ // These preferences are here to reduce the number of selectors
+ // needing tokenize in the PSEUDO preFilter
+ pseudos = ":(" + characterEncoding + ")(?:\\(((['\"])((?:\\\\.|[^\\\\])*?)\\3|((?:\\\\.|[^\\\\()[\\]]|" + attributes.replace( 3, 8 ) + ")*)|.*)\\)|)",
+
+ // Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
+ rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ),
+
+ rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ),
+ rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*" ),
+
+ rsibling = new RegExp( whitespace + "*[+~]" ),
+ rattributeQuotes = new RegExp( "=" + whitespace + "*([^\\]'\"]*)" + whitespace + "*\\]", "g" ),
+
+ rpseudo = new RegExp( pseudos ),
+ ridentifier = new RegExp( "^" + identifier + "$" ),
+
+ matchExpr = {
+ "ID": new RegExp( "^#(" + characterEncoding + ")" ),
+ "CLASS": new RegExp( "^\\.(" + characterEncoding + ")" ),
+ "TAG": new RegExp( "^(" + characterEncoding.replace( "w", "w*" ) + ")" ),
+ "ATTR": new RegExp( "^" + attributes ),
+ "PSEUDO": new RegExp( "^" + pseudos ),
+ "CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace +
+ "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace +
+ "*(\\d+)|))" + whitespace + "*\\)|)", "i" ),
+ "bool": new RegExp( "^(?:" + booleans + ")$", "i" ),
+ // For use in libraries implementing .is()
+ // We use this for POS matching in `select`
+ "needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" +
+ whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )
+ },
+
+ rnative = /^[^{]+\{\s*\[native \w/,
+
+ // Easily-parseable/retrievable ID or TAG or CLASS selectors
+ rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,
+
+ rinputs = /^(?:input|select|textarea|button)$/i,
+ rheader = /^h\d$/i,
+
+ rescape = /'|\\/g,
+
+ // CSS escapes http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
+ runescape = new RegExp( "\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig" ),
+ funescape = function( _, escaped, escapedWhitespace ) {
+ var high = "0x" + escaped - 0x10000;
+ // NaN means non-codepoint
+ // Support: Firefox
+ // Workaround erroneous numeric interpretation of +"0x"
+ return high !== high || escapedWhitespace ?
+ escaped :
+ // BMP codepoint
+ high < 0 ?
+ String.fromCharCode( high + 0x10000 ) :
+ // Supplemental Plane codepoint (surrogate pair)
+ String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );
+ };
+
+// Optimize for push.apply( _, NodeList )
+try {
+ push.apply(
+ (arr = slice.call( preferredDoc.childNodes )),
+ preferredDoc.childNodes
+ );
+ // Support: Android<4.0
+ // Detect silently failing push.apply
+ arr[ preferredDoc.childNodes.length ].nodeType;
+} catch ( e ) {
+ push = { apply: arr.length ?
+
+ // Leverage slice if possible
+ function( target, els ) {
+ push_native.apply( target, slice.call(els) );
+ } :
+
+ // Support: IE<9
+ // Otherwise append directly
+ function( target, els ) {
+ var j = target.length,
+ i = 0;
+ // Can't trust NodeList.length
+ while ( (target[j++] = els[i++]) ) {}
+ target.length = j - 1;
+ }
+ };
+}
+
+function Sizzle( selector, context, results, seed ) {
+ var match, elem, m, nodeType,
+ // QSA vars
+ i, groups, old, nid, newContext, newSelector;
+
+ if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) {
+ setDocument( context );
+ }
+
+ context = context || document;
+ results = results || [];
+
+ if ( !selector || typeof selector !== "string" ) {
+ return results;
+ }
+
+ if ( (nodeType = context.nodeType) !== 1 && nodeType !== 9 ) {
+ return [];
+ }
+
+ if ( documentIsHTML && !seed ) {
+
+ // Shortcuts
+ if ( (match = rquickExpr.exec( selector )) ) {
+ // Speed-up: Sizzle("#ID")
+ if ( (m = match[1]) ) {
+ if ( nodeType === 9 ) {
+ elem = context.getElementById( m );
+ // Check parentNode to catch when Blackberry 4.6 returns
+ // nodes that are no longer in the document #6963
+ if ( elem && elem.parentNode ) {
+ // Handle the case where IE, Opera, and Webkit return items
+ // by name instead of ID
+ if ( elem.id === m ) {
+ results.push( elem );
+ return results;
+ }
+ } else {
+ return results;
+ }
+ } else {
+ // Context is not a document
+ if ( context.ownerDocument && (elem = context.ownerDocument.getElementById( m )) &&
+ contains( context, elem ) && elem.id === m ) {
+ results.push( elem );
+ return results;
+ }
+ }
+
+ // Speed-up: Sizzle("TAG")
+ } else if ( match[2] ) {
+ push.apply( results, context.getElementsByTagName( selector ) );
+ return results;
+
+ // Speed-up: Sizzle(".CLASS")
+ } else if ( (m = match[3]) && support.getElementsByClassName && context.getElementsByClassName ) {
+ push.apply( results, context.getElementsByClassName( m ) );
+ return results;
+ }
+ }
+
+ // QSA path
+ if ( support.qsa && (!rbuggyQSA || !rbuggyQSA.test( selector )) ) {
+ nid = old = expando;
+ newContext = context;
+ newSelector = nodeType === 9 && selector;
+
+ // qSA works strangely on Element-rooted queries
+ // We can work around this by specifying an extra ID on the root
+ // and working up from there (Thanks to Andrew Dupont for the technique)
+ // IE 8 doesn't work on object elements
+ if ( nodeType === 1 && context.nodeName.toLowerCase() !== "object" ) {
+ groups = tokenize( selector );
+
+ if ( (old = context.getAttribute("id")) ) {
+ nid = old.replace( rescape, "\\$&" );
+ } else {
+ context.setAttribute( "id", nid );
+ }
+ nid = "[id='" + nid + "'] ";
+
+ i = groups.length;
+ while ( i-- ) {
+ groups[i] = nid + toSelector( groups[i] );
+ }
+ newContext = rsibling.test( selector ) && context.parentNode || context;
+ newSelector = groups.join(",");
+ }
+
+ if ( newSelector ) {
+ try {
+ push.apply( results,
+ newContext.querySelectorAll( newSelector )
+ );
+ return results;
+ } catch(qsaError) {
+ } finally {
+ if ( !old ) {
+ context.removeAttribute("id");
+ }
+ }
+ }
+ }
+ }
+
+ // All others
+ return select( selector.replace( rtrim, "$1" ), context, results, seed );
+}
+
+/**
+ * Create key-value caches of limited size
+ * @returns {Function(string, Object)} Returns the Object data after storing it on itself with
+ * property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
+ * deleting the oldest entry
+ */
+function createCache() {
+ var keys = [];
+
+ function cache( key, value ) {
+ // Use (key + " ") to avoid collision with native prototype properties (see Issue #157)
+ if ( keys.push( key += " " ) > Expr.cacheLength ) {
+ // Only keep the most recent entries
+ delete cache[ keys.shift() ];
+ }
+ return (cache[ key ] = value);
+ }
+ return cache;
+}
+
+/**
+ * Mark a function for special use by Sizzle
+ * @param {Function} fn The function to mark
+ */
+function markFunction( fn ) {
+ fn[ expando ] = true;
+ return fn;
+}
+
+/**
+ * Support testing using an element
+ * @param {Function} fn Passed the created div and expects a boolean result
+ */
+function assert( fn ) {
+ var div = document.createElement("div");
+
+ try {
+ return !!fn( div );
+ } catch (e) {
+ return false;
+ } finally {
+ // Remove from its parent by default
+ if ( div.parentNode ) {
+ div.parentNode.removeChild( div );
+ }
+ // release memory in IE
+ div = null;
+ }
+}
+
+/**
+ * Adds the same handler for all of the specified attrs
+ * @param {String} attrs Pipe-separated list of attributes
+ * @param {Function} handler The method that will be applied
+ */
+function addHandle( attrs, handler ) {
+ var arr = attrs.split("|"),
+ i = attrs.length;
+
+ while ( i-- ) {
+ Expr.attrHandle[ arr[i] ] = handler;
+ }
+}
+
+/**
+ * Checks document order of two siblings
+ * @param {Element} a
+ * @param {Element} b
+ * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b
+ */
+function siblingCheck( a, b ) {
+ var cur = b && a,
+ diff = cur && a.nodeType === 1 && b.nodeType === 1 &&
+ ( ~b.sourceIndex || MAX_NEGATIVE ) -
+ ( ~a.sourceIndex || MAX_NEGATIVE );
+
+ // Use IE sourceIndex if available on both nodes
+ if ( diff ) {
+ return diff;
+ }
+
+ // Check if b follows a
+ if ( cur ) {
+ while ( (cur = cur.nextSibling) ) {
+ if ( cur === b ) {
+ return -1;
+ }
+ }
+ }
+
+ return a ? 1 : -1;
+}
+
+/**
+ * Returns a function to use in pseudos for input types
+ * @param {String} type
+ */
+function createInputPseudo( type ) {
+ return function( elem ) {
+ var name = elem.nodeName.toLowerCase();
+ return name === "input" && elem.type === type;
+ };
+}
+
+/**
+ * Returns a function to use in pseudos for buttons
+ * @param {String} type
+ */
+function createButtonPseudo( type ) {
+ return function( elem ) {
+ var name = elem.nodeName.toLowerCase();
+ return (name === "input" || name === "button") && elem.type === type;
+ };
+}
+
+/**
+ * Returns a function to use in pseudos for positionals
+ * @param {Function} fn
+ */
+function createPositionalPseudo( fn ) {
+ return markFunction(function( argument ) {
+ argument = +argument;
+ return markFunction(function( seed, matches ) {
+ var j,
+ matchIndexes = fn( [], seed.length, argument ),
+ i = matchIndexes.length;
+
+ // Match elements found at the specified indexes
+ while ( i-- ) {
+ if ( seed[ (j = matchIndexes[i]) ] ) {
+ seed[j] = !(matches[j] = seed[j]);
+ }
+ }
+ });
+ });
+}
+
+/**
+ * Detect xml
+ * @param {Element|Object} elem An element or a document
+ */
+isXML = Sizzle.isXML = function( elem ) {
+ // documentElement is verified for cases where it doesn't yet exist
+ // (such as loading iframes in IE - #4833)
+ var documentElement = elem && (elem.ownerDocument || elem).documentElement;
+ return documentElement ? documentElement.nodeName !== "HTML" : false;
+};
+
+// Expose support vars for convenience
+support = Sizzle.support = {};
+
+/**
+ * Sets document-related variables once based on the current document
+ * @param {Element|Object} [doc] An element or document object to use to set the document
+ * @returns {Object} Returns the current document
+ */
+setDocument = Sizzle.setDocument = function( node ) {
+ var doc = node ? node.ownerDocument || node : preferredDoc,
+ parent = doc.defaultView;
+
+ // If no document and documentElement is available, return
+ if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) {
+ return document;
+ }
+
+ // Set our document
+ document = doc;
+ docElem = doc.documentElement;
+
+ // Support tests
+ documentIsHTML = !isXML( doc );
+
+ // Support: IE>8
+ // If iframe document is assigned to "document" variable and if iframe has been reloaded,
+ // IE will throw "permission denied" error when accessing "document" variable, see jQuery #13936
+ // IE6-8 do not support the defaultView property so parent will be undefined
+ if ( parent && parent.attachEvent && parent !== parent.top ) {
+ parent.attachEvent( "onbeforeunload", function() {
+ setDocument();
+ });
+ }
+
+ /* Attributes
+ ---------------------------------------------------------------------- */
+
+ // Support: IE<8
+ // Verify that getAttribute really returns attributes and not properties (excepting IE8 booleans)
+ support.attributes = assert(function( div ) {
+ div.className = "i";
+ return !div.getAttribute("className");
+ });
+
+ /* getElement(s)By*
+ ---------------------------------------------------------------------- */
+
+ // Check if getElementsByTagName("*") returns only elements
+ support.getElementsByTagName = assert(function( div ) {
+ div.appendChild( doc.createComment("") );
+ return !div.getElementsByTagName("*").length;
+ });
+
+ // Check if getElementsByClassName can be trusted
+ support.getElementsByClassName = assert(function( div ) {
+ div.innerHTML = "<div class='a'></div><div class='a i'></div>";
+
+ // Support: Safari<4
+ // Catch class over-caching
+ div.firstChild.className = "i";
+ // Support: Opera<10
+ // Catch gEBCN failure to find non-leading classes
+ return div.getElementsByClassName("i").length === 2;
+ });
+
+ // Support: IE<10
+ // Check if getElementById returns elements by name
+ // The broken getElementById methods don't pick up programatically-set names,
+ // so use a roundabout getElementsByName test
+ support.getById = assert(function( div ) {
+ docElem.appendChild( div ).id = expando;
+ return !doc.getElementsByName || !doc.getElementsByName( expando ).length;
+ });
+
+ // ID find and filter
+ if ( support.getById ) {
+ Expr.find["ID"] = function( id, context ) {
+ if ( typeof context.getElementById !== strundefined && documentIsHTML ) {
+ var m = context.getElementById( id );
+ // Check parentNode to catch when Blackberry 4.6 returns
+ // nodes that are no longer in the document #6963
+ return m && m.parentNode ? [m] : [];
+ }
+ };
+ Expr.filter["ID"] = function( id ) {
+ var attrId = id.replace( runescape, funescape );
+ return function( elem ) {
+ return elem.getAttribute("id") === attrId;
+ };
+ };
+ } else {
+ // Support: IE6/7
+ // getElementById is not reliable as a find shortcut
+ delete Expr.find["ID"];
+
+ Expr.filter["ID"] = function( id ) {
+ var attrId = id.replace( runescape, funescape );
+ return function( elem ) {
+ var node = typeof elem.getAttributeNode !== strundefined && elem.getAttributeNode("id");
+ return node && node.value === attrId;
+ };
+ };
+ }
+
+ // Tag
+ Expr.find["TAG"] = support.getElementsByTagName ?
+ function( tag, context ) {
+ if ( typeof context.getElementsByTagName !== strundefined ) {
+ return context.getElementsByTagName( tag );
+ }
+ } :
+ function( tag, context ) {
+ var elem,
+ tmp = [],
+ i = 0,
+ results = context.getElementsByTagName( tag );
+
+ // Filter out possible comments
+ if ( tag === "*" ) {
+ while ( (elem = results[i++]) ) {
+ if ( elem.nodeType === 1 ) {
+ tmp.push( elem );
+ }
+ }
+
+ return tmp;
+ }
+ return results;
+ };
+
+ // Class
+ Expr.find["CLASS"] = support.getElementsByClassName && function( className, context ) {
+ if ( typeof context.getElementsByClassName !== strundefined && documentIsHTML ) {
+ return context.getElementsByClassName( className );
+ }
+ };
+
+ /* QSA/matchesSelector
+ ---------------------------------------------------------------------- */
+
+ // QSA and matchesSelector support
+
+ // matchesSelector(:active) reports false when true (IE9/Opera 11.5)
+ rbuggyMatches = [];
+
+ // qSa(:focus) reports false when true (Chrome 21)
+ // We allow this because of a bug in IE8/9 that throws an error
+ // whenever `document.activeElement` is accessed on an iframe
+ // So, we allow :focus to pass through QSA all the time to avoid the IE error
+ // See http://bugs.jquery.com/ticket/13378
+ rbuggyQSA = [];
+
+ if ( (support.qsa = rnative.test( doc.querySelectorAll )) ) {
+ // Build QSA regex
+ // Regex strategy adopted from Diego Perini
+ assert(function( div ) {
+ // Select is set to empty string on purpose
+ // This is to test IE's treatment of not explicitly
+ // setting a boolean content attribute,
+ // since its presence should be enough
+ // http://bugs.jquery.com/ticket/12359
+ div.innerHTML = "<select><option selected=''></option></select>";
+
+ // Support: IE8
+ // Boolean attributes and "value" are not treated correctly
+ if ( !div.querySelectorAll("[selected]").length ) {
+ rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" );
+ }
+
+ // Webkit/Opera - :checked should return selected option elements
+ // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
+ // IE8 throws error here and will not see later tests
+ if ( !div.querySelectorAll(":checked").length ) {
+ rbuggyQSA.push(":checked");
+ }
+ });
+
+ assert(function( div ) {
+
+ // Support: Opera 10-12/IE8
+ // ^= $= *= and empty values
+ // Should not select anything
+ // Support: Windows 8 Native Apps
+ // The type attribute is restricted during .innerHTML assignment
+ var input = doc.createElement("input");
+ input.setAttribute( "type", "hidden" );
+ div.appendChild( input ).setAttribute( "t", "" );
+
+ if ( div.querySelectorAll("[t^='']").length ) {
+ rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" );
+ }
+
+ // FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)
+ // IE8 throws error here and will not see later tests
+ if ( !div.querySelectorAll(":enabled").length ) {
+ rbuggyQSA.push( ":enabled", ":disabled" );
+ }
+
+ // Opera 10-11 does not throw on post-comma invalid pseudos
+ div.querySelectorAll("*,:x");
+ rbuggyQSA.push(",.*:");
+ });
+ }
+
+ if ( (support.matchesSelector = rnative.test( (matches = docElem.webkitMatchesSelector ||
+ docElem.mozMatchesSelector ||
+ docElem.oMatchesSelector ||
+ docElem.msMatchesSelector) )) ) {
+
+ assert(function( div ) {
+ // Check to see if it's possible to do matchesSelector
+ // on a disconnected node (IE 9)
+ support.disconnectedMatch = matches.call( div, "div" );
+
+ // This should fail with an exception
+ // Gecko does not error, returns false instead
+ matches.call( div, "[s!='']:x" );
+ rbuggyMatches.push( "!=", pseudos );
+ });
+ }
+
+ rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join("|") );
+ rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join("|") );
+
+ /* Contains
+ ---------------------------------------------------------------------- */
+
+ // Element contains another
+ // Purposefully does not implement inclusive descendent
+ // As in, an element does not contain itself
+ contains = rnative.test( docElem.contains ) || docElem.compareDocumentPosition ?
+ function( a, b ) {
+ var adown = a.nodeType === 9 ? a.documentElement : a,
+ bup = b && b.parentNode;
+ return a === bup || !!( bup && bup.nodeType === 1 && (
+ adown.contains ?
+ adown.contains( bup ) :
+ a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16
+ ));
+ } :
+ function( a, b ) {
+ if ( b ) {
+ while ( (b = b.parentNode) ) {
+ if ( b === a ) {
+ return true;
+ }
+ }
+ }
+ return false;
+ };
+
+ /* Sorting
+ ---------------------------------------------------------------------- */
+
+ // Document order sorting
+ sortOrder = docElem.compareDocumentPosition ?
+ function( a, b ) {
+
+ // Flag for duplicate removal
+ if ( a === b ) {
+ hasDuplicate = true;
+ return 0;
+ }
+
+ var compare = b.compareDocumentPosition && a.compareDocumentPosition && a.compareDocumentPosition( b );
+
+ if ( compare ) {
+ // Disconnected nodes
+ if ( compare & 1 ||
+ (!support.sortDetached && b.compareDocumentPosition( a ) === compare) ) {
+
+ // Choose the first element that is related to our preferred document
+ if ( a === doc || contains(preferredDoc, a) ) {
+ return -1;
+ }
+ if ( b === doc || contains(preferredDoc, b) ) {
+ return 1;
+ }
+
+ // Maintain original order
+ return sortInput ?
+ ( indexOf.call( sortInput, a ) - indexOf.call( sortInput, b ) ) :
+ 0;
+ }
+
+ return compare & 4 ? -1 : 1;
+ }
+
+ // Not directly comparable, sort on existence of method
+ return a.compareDocumentPosition ? -1 : 1;
+ } :
+ function( a, b ) {
+ var cur,
+ i = 0,
+ aup = a.parentNode,
+ bup = b.parentNode,
+ ap = [ a ],
+ bp = [ b ];
+
+ // Exit early if the nodes are identical
+ if ( a === b ) {
+ hasDuplicate = true;
+ return 0;
+
+ // Parentless nodes are either documents or disconnected
+ } else if ( !aup || !bup ) {
+ return a === doc ? -1 :
+ b === doc ? 1 :
+ aup ? -1 :
+ bup ? 1 :
+ sortInput ?
+ ( indexOf.call( sortInput, a ) - indexOf.call( sortInput, b ) ) :
+ 0;
+
+ // If the nodes are siblings, we can do a quick check
+ } else if ( aup === bup ) {
+ return siblingCheck( a, b );
+ }
+
+ // Otherwise we need full lists of their ancestors for comparison
+ cur = a;
+ while ( (cur = cur.parentNode) ) {
+ ap.unshift( cur );
+ }
+ cur = b;
+ while ( (cur = cur.parentNode) ) {
+ bp.unshift( cur );
+ }
+
+ // Walk down the tree looking for a discrepancy
+ while ( ap[i] === bp[i] ) {
+ i++;
+ }
+
+ return i ?
+ // Do a sibling check if the nodes have a common ancestor
+ siblingCheck( ap[i], bp[i] ) :
+
+ // Otherwise nodes in our document sort first
+ ap[i] === preferredDoc ? -1 :
+ bp[i] === preferredDoc ? 1 :
+ 0;
+ };
+
+ return doc;
+};
+
+Sizzle.matches = function( expr, elements ) {
+ return Sizzle( expr, null, null, elements );
+};
+
+Sizzle.matchesSelector = function( elem, expr ) {
+ // Set document vars if needed
+ if ( ( elem.ownerDocument || elem ) !== document ) {
+ setDocument( elem );
+ }
+
+ // Make sure that attribute selectors are quoted
+ expr = expr.replace( rattributeQuotes, "='$1']" );
+
+ if ( support.matchesSelector && documentIsHTML &&
+ ( !rbuggyMatches || !rbuggyMatches.test( expr ) ) &&
+ ( !rbuggyQSA || !rbuggyQSA.test( expr ) ) ) {
+
+ try {
+ var ret = matches.call( elem, expr );
+
+ // IE 9's matchesSelector returns false on disconnected nodes
+ if ( ret || support.disconnectedMatch ||
+ // As well, disconnected nodes are said to be in a document
+ // fragment in IE 9
+ elem.document && elem.document.nodeType !== 11 ) {
+ return ret;
+ }
+ } catch(e) {}
+ }
+
+ return Sizzle( expr, document, null, [elem] ).length > 0;
+};
+
+Sizzle.contains = function( context, elem ) {
+ // Set document vars if needed
+ if ( ( context.ownerDocument || context ) !== document ) {
+ setDocument( context );
+ }
+ return contains( context, elem );
+};
+
+Sizzle.attr = function( elem, name ) {
+ // Set document vars if needed
+ if ( ( elem.ownerDocument || elem ) !== document ) {
+ setDocument( elem );
+ }
+
+ var fn = Expr.attrHandle[ name.toLowerCase() ],
+ // Don't get fooled by Object.prototype properties (jQuery #13807)
+ val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ?
+ fn( elem, name, !documentIsHTML ) :
+ undefined;
+
+ return val === undefined ?
+ support.attributes || !documentIsHTML ?
+ elem.getAttribute( name ) :
+ (val = elem.getAttributeNode(name)) && val.specified ?
+ val.value :
+ null :
+ val;
+};
+
+Sizzle.error = function( msg ) {
+ throw new Error( "Syntax error, unrecognized expression: " + msg );
+};
+
+/**
+ * Document sorting and removing duplicates
+ * @param {ArrayLike} results
+ */
+Sizzle.uniqueSort = function( results ) {
+ var elem,
+ duplicates = [],
+ j = 0,
+ i = 0;
+
+ // Unless we *know* we can detect duplicates, assume their presence
+ hasDuplicate = !support.detectDuplicates;
+ sortInput = !support.sortStable && results.slice( 0 );
+ results.sort( sortOrder );
+
+ if ( hasDuplicate ) {
+ while ( (elem = results[i++]) ) {
+ if ( elem === results[ i ] ) {
+ j = duplicates.push( i );
+ }
+ }
+ while ( j-- ) {
+ results.splice( duplicates[ j ], 1 );
+ }
+ }
+
+ return results;
+};
+
+/**
+ * Utility function for retrieving the text value of an array of DOM nodes
+ * @param {Array|Element} elem
+ */
+getText = Sizzle.getText = function( elem ) {
+ var node,
+ ret = "",
+ i = 0,
+ nodeType = elem.nodeType;
+
+ if ( !nodeType ) {
+ // If no nodeType, this is expected to be an array
+ for ( ; (node = elem[i]); i++ ) {
+ // Do not traverse comment nodes
+ ret += getText( node );
+ }
+ } else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {
+ // Use textContent for elements
+ // innerText usage removed for consistency of new lines (see #11153)
+ if ( typeof elem.textContent === "string" ) {
+ return elem.textContent;
+ } else {
+ // Traverse its children
+ for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
+ ret += getText( elem );
+ }
+ }
+ } else if ( nodeType === 3 || nodeType === 4 ) {
+ return elem.nodeValue;
+ }
+ // Do not include comment or processing instruction nodes
+
+ return ret;
+};
+
+Expr = Sizzle.selectors = {
+
+ // Can be adjusted by the user
+ cacheLength: 50,
+
+ createPseudo: markFunction,
+
+ match: matchExpr,
+
+ attrHandle: {},
+
+ find: {},
+
+ relative: {
+ ">": { dir: "parentNode", first: true },
+ " ": { dir: "parentNode" },
+ "+": { dir: "previousSibling", first: true },
+ "~": { dir: "previousSibling" }
+ },
+
+ preFilter: {
+ "ATTR": function( match ) {
+ match[1] = match[1].replace( runescape, funescape );
+
+ // Move the given value to match[3] whether quoted or unquoted
+ match[3] = ( match[4] || match[5] || "" ).replace( runescape, funescape );
+
+ if ( match[2] === "~=" ) {
+ match[3] = " " + match[3] + " ";
+ }
+
+ return match.slice( 0, 4 );
+ },
+
+ "CHILD": function( match ) {
+ /* matches from matchExpr["CHILD"]
+ 1 type (only|nth|...)
+ 2 what (child|of-type)
+ 3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)
+ 4 xn-component of xn+y argument ([+-]?\d*n|)
+ 5 sign of xn-component
+ 6 x of xn-component
+ 7 sign of y-component
+ 8 y of y-component
+ */
+ match[1] = match[1].toLowerCase();
+
+ if ( match[1].slice( 0, 3 ) === "nth" ) {
+ // nth-* requires argument
+ if ( !match[3] ) {
+ Sizzle.error( match[0] );
+ }
+
+ // numeric x and y parameters for Expr.filter.CHILD
+ // remember that false/true cast respectively to 0/1
+ match[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === "even" || match[3] === "odd" ) );
+ match[5] = +( ( match[7] + match[8] ) || match[3] === "odd" );
+
+ // other types prohibit arguments
+ } else if ( match[3] ) {
+ Sizzle.error( match[0] );
+ }
+
+ return match;
+ },
+
+ "PSEUDO": function( match ) {
+ var excess,
+ unquoted = !match[5] && match[2];
+
+ if ( matchExpr["CHILD"].test( match[0] ) ) {
+ return null;
+ }
+
+ // Accept quoted arguments as-is
+ if ( match[3] && match[4] !== undefined ) {
+ match[2] = match[4];
+
+ // Strip excess characters from unquoted arguments
+ } else if ( unquoted && rpseudo.test( unquoted ) &&
+ // Get excess from tokenize (recursively)
+ (excess = tokenize( unquoted, true )) &&
+ // advance to the next closing parenthesis
+ (excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length) ) {
+
+ // excess is a negative index
+ match[0] = match[0].slice( 0, excess );
+ match[2] = unquoted.slice( 0, excess );
+ }
+
+ // Return only captures needed by the pseudo filter method (type and argument)
+ return match.slice( 0, 3 );
+ }
+ },
+
+ filter: {
+
+ "TAG": function( nodeNameSelector ) {
+ var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase();
+ return nodeNameSelector === "*" ?
+ function() { return true; } :
+ function( elem ) {
+ return elem.nodeName && elem.nodeName.toLowerCase() === nodeName;
+ };
+ },
+
+ "CLASS": function( className ) {
+ var pattern = classCache[ className + " " ];
+
+ return pattern ||
+ (pattern = new RegExp( "(^|" + whitespace + ")" + className + "(" + whitespace + "|$)" )) &&
+ classCache( className, function( elem ) {
+ return pattern.test( typeof elem.className === "string" && elem.className || typeof elem.getAttribute !== strundefined && elem.getAttribute("class") || "" );
+ });
+ },
+
+ "ATTR": function( name, operator, check ) {
+ return function( elem ) {
+ var result = Sizzle.attr( elem, name );
+
+ if ( result == null ) {
+ return operator === "!=";
+ }
+ if ( !operator ) {
+ return true;
+ }
+
+ result += "";
+
+ return operator === "=" ? result === check :
+ operator === "!=" ? result !== check :
+ operator === "^=" ? check && result.indexOf( check ) === 0 :
+ operator === "*=" ? check && result.indexOf( check ) > -1 :
+ operator === "$=" ? check && result.slice( -check.length ) === check :
+ operator === "~=" ? ( " " + result + " " ).indexOf( check ) > -1 :
+ operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" :
+ false;
+ };
+ },
+
+ "CHILD": function( type, what, argument, first, last ) {
+ var simple = type.slice( 0, 3 ) !== "nth",
+ forward = type.slice( -4 ) !== "last",
+ ofType = what === "of-type";
+
+ return first === 1 && last === 0 ?
+
+ // Shortcut for :nth-*(n)
+ function( elem ) {
+ return !!elem.parentNode;
+ } :
+
+ function( elem, context, xml ) {
+ var cache, outerCache, node, diff, nodeIndex, start,
+ dir = simple !== forward ? "nextSibling" : "previousSibling",
+ parent = elem.parentNode,
+ name = ofType && elem.nodeName.toLowerCase(),
+ useCache = !xml && !ofType;
+
+ if ( parent ) {
+
+ // :(first|last|only)-(child|of-type)
+ if ( simple ) {
+ while ( dir ) {
+ node = elem;
+ while ( (node = node[ dir ]) ) {
+ if ( ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1 ) {
+ return false;
+ }
+ }
+ // Reverse direction for :only-* (if we haven't yet done so)
+ start = dir = type === "only" && !start && "nextSibling";
+ }
+ return true;
+ }
+
+ start = [ forward ? parent.firstChild : parent.lastChild ];
+
+ // non-xml :nth-child(...) stores cache data on `parent`
+ if ( forward && useCache ) {
+ // Seek `elem` from a previously-cached index
+ outerCache = parent[ expando ] || (parent[ expando ] = {});
+ cache = outerCache[ type ] || [];
+ nodeIndex = cache[0] === dirruns && cache[1];
+ diff = cache[0] === dirruns && cache[2];
+ node = nodeIndex && parent.childNodes[ nodeIndex ];
+
+ while ( (node = ++nodeIndex && node && node[ dir ] ||
+
+ // Fallback to seeking `elem` from the start
+ (diff = nodeIndex = 0) || start.pop()) ) {
+
+ // When found, cache indexes on `parent` and break
+ if ( node.nodeType === 1 && ++diff && node === elem ) {
+ outerCache[ type ] = [ dirruns, nodeIndex, diff ];
+ break;
+ }
+ }
+
+ // Use previously-cached element index if available
+ } else if ( useCache && (cache = (elem[ expando ] || (elem[ expando ] = {}))[ type ]) && cache[0] === dirruns ) {
+ diff = cache[1];
+
+ // xml :nth-child(...) or :nth-last-child(...) or :nth(-last)?-of-type(...)
+ } else {
+ // Use the same loop as above to seek `elem` from the start
+ while ( (node = ++nodeIndex && node && node[ dir ] ||
+ (diff = nodeIndex = 0) || start.pop()) ) {
+
+ if ( ( ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1 ) && ++diff ) {
+ // Cache the index of each encountered element
+ if ( useCache ) {
+ (node[ expando ] || (node[ expando ] = {}))[ type ] = [ dirruns, diff ];
+ }
+
+ if ( node === elem ) {
+ break;
+ }
+ }
+ }
+ }
+
+ // Incorporate the offset, then check against cycle size
+ diff -= last;
+ return diff === first || ( diff % first === 0 && diff / first >= 0 );
+ }
+ };
+ },
+
+ "PSEUDO": function( pseudo, argument ) {
+ // pseudo-class names are case-insensitive
+ // http://www.w3.org/TR/selectors/#pseudo-classes
+ // Prioritize by case sensitivity in case custom pseudos are added with uppercase letters
+ // Remember that setFilters inherits from pseudos
+ var args,
+ fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] ||
+ Sizzle.error( "unsupported pseudo: " + pseudo );
+
+ // The user may use createPseudo to indicate that
+ // arguments are needed to create the filter function
+ // just as Sizzle does
+ if ( fn[ expando ] ) {
+ return fn( argument );
+ }
+
+ // But maintain support for old signatures
+ if ( fn.length > 1 ) {
+ args = [ pseudo, pseudo, "", argument ];
+ return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ?
+ markFunction(function( seed, matches ) {
+ var idx,
+ matched = fn( seed, argument ),
+ i = matched.length;
+ while ( i-- ) {
+ idx = indexOf.call( seed, matched[i] );
+ seed[ idx ] = !( matches[ idx ] = matched[i] );
+ }
+ }) :
+ function( elem ) {
+ return fn( elem, 0, args );
+ };
+ }
+
+ return fn;
+ }
+ },
+
+ pseudos: {
+ // Potentially complex pseudos
+ "not": markFunction(function( selector ) {
+ // Trim the selector passed to compile
+ // to avoid treating leading and trailing
+ // spaces as combinators
+ var input = [],
+ results = [],
+ matcher = compile( selector.replace( rtrim, "$1" ) );
+
+ return matcher[ expando ] ?
+ markFunction(function( seed, matches, context, xml ) {
+ var elem,
+ unmatched = matcher( seed, null, xml, [] ),
+ i = seed.length;
+
+ // Match elements unmatched by `matcher`
+ while ( i-- ) {
+ if ( (elem = unmatched[i]) ) {
+ seed[i] = !(matches[i] = elem);
+ }
+ }
+ }) :
+ function( elem, context, xml ) {
+ input[0] = elem;
+ matcher( input, null, xml, results );
+ return !results.pop();
+ };
+ }),
+
+ "has": markFunction(function( selector ) {
+ return function( elem ) {
+ return Sizzle( selector, elem ).length > 0;
+ };
+ }),
+
+ "contains": markFunction(function( text ) {
+ return function( elem ) {
+ return ( elem.textContent || elem.innerText || getText( elem ) ).indexOf( text ) > -1;
+ };
+ }),
+
+ // "Whether an element is represented by a :lang() selector
+ // is based solely on the element's language value
+ // being equal to the identifier C,
+ // or beginning with the identifier C immediately followed by "-".
+ // The matching of C against the element's language value is performed case-insensitively.
+ // The identifier C does not have to be a valid language name."
+ // http://www.w3.org/TR/selectors/#lang-pseudo
+ "lang": markFunction( function( lang ) {
+ // lang value must be a valid identifier
+ if ( !ridentifier.test(lang || "") ) {
+ Sizzle.error( "unsupported lang: " + lang );
+ }
+ lang = lang.replace( runescape, funescape ).toLowerCase();
+ return function( elem ) {
+ var elemLang;
+ do {
+ if ( (elemLang = documentIsHTML ?
+ elem.lang :
+ elem.getAttribute("xml:lang") || elem.getAttribute("lang")) ) {
+
+ elemLang = elemLang.toLowerCase();
+ return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0;
+ }
+ } while ( (elem = elem.parentNode) && elem.nodeType === 1 );
+ return false;
+ };
+ }),
+
+ // Miscellaneous
+ "target": function( elem ) {
+ var hash = window.location && window.location.hash;
+ return hash && hash.slice( 1 ) === elem.id;
+ },
+
+ "root": function( elem ) {
+ return elem === docElem;
+ },
+
+ "focus": function( elem ) {
+ return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex);
+ },
+
+ // Boolean properties
+ "enabled": function( elem ) {
+ return elem.disabled === false;
+ },
+
+ "disabled": function( elem ) {
+ return elem.disabled === true;
+ },
+
+ "checked": function( elem ) {
+ // In CSS3, :checked should return both checked and selected elements
+ // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
+ var nodeName = elem.nodeName.toLowerCase();
+ return (nodeName === "input" && !!elem.checked) || (nodeName === "option" && !!elem.selected);
+ },
+
+ "selected": function( elem ) {
+ // Accessing this property makes selected-by-default
+ // options in Safari work properly
+ if ( elem.parentNode ) {
+ elem.parentNode.selectedIndex;
+ }
+
+ return elem.selected === true;
+ },
+
+ // Contents
+ "empty": function( elem ) {
+ // http://www.w3.org/TR/selectors/#empty-pseudo
+ // :empty is only affected by element nodes and content nodes(including text(3), cdata(4)),
+ // not comment, processing instructions, or others
+ // Thanks to Diego Perini for the nodeName shortcut
+ // Greater than "@" means alpha characters (specifically not starting with "#" or "?")
+ for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
+ if ( elem.nodeName > "@" || elem.nodeType === 3 || elem.nodeType === 4 ) {
+ return false;
+ }
+ }
+ return true;
+ },
+
+ "parent": function( elem ) {
+ return !Expr.pseudos["empty"]( elem );
+ },
+
+ // Element/input types
+ "header": function( elem ) {
+ return rheader.test( elem.nodeName );
+ },
+
+ "input": function( elem ) {
+ return rinputs.test( elem.nodeName );
+ },
+
+ "button": function( elem ) {
+ var name = elem.nodeName.toLowerCase();
+ return name === "input" && elem.type === "button" || name === "button";
+ },
+
+ "text": function( elem ) {
+ var attr;
+ // IE6 and 7 will map elem.type to 'text' for new HTML5 types (search, etc)
+ // use getAttribute instead to test this case
+ return elem.nodeName.toLowerCase() === "input" &&
+ elem.type === "text" &&
+ ( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === elem.type );
+ },
+
+ // Position-in-collection
+ "first": createPositionalPseudo(function() {
+ return [ 0 ];
+ }),
+
+ "last": createPositionalPseudo(function( matchIndexes, length ) {
+ return [ length - 1 ];
+ }),
+
+ "eq": createPositionalPseudo(function( matchIndexes, length, argument ) {
+ return [ argument < 0 ? argument + length : argument ];
+ }),
+
+ "even": createPositionalPseudo(function( matchIndexes, length ) {
+ var i = 0;
+ for ( ; i < length; i += 2 ) {
+ matchIndexes.push( i );
+ }
+ return matchIndexes;
+ }),
+
+ "odd": createPositionalPseudo(function( matchIndexes, length ) {
+ var i = 1;
+ for ( ; i < length; i += 2 ) {
+ matchIndexes.push( i );
+ }
+ return matchIndexes;
+ }),
+
+ "lt": createPositionalPseudo(function( matchIndexes, length, argument ) {
+ var i = argument < 0 ? argument + length : argument;
+ for ( ; --i >= 0; ) {
+ matchIndexes.push( i );
+ }
+ return matchIndexes;
+ }),
+
+ "gt": createPositionalPseudo(function( matchIndexes, length, argument ) {
+ var i = argument < 0 ? argument + length : argument;
+ for ( ; ++i < length; ) {
+ matchIndexes.push( i );
+ }
+ return matchIndexes;
+ })
+ }
+};
+
+Expr.pseudos["nth"] = Expr.pseudos["eq"];
+
+// Add button/input type pseudos
+for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) {
+ Expr.pseudos[ i ] = createInputPseudo( i );
+}
+for ( i in { submit: true, reset: true } ) {
+ Expr.pseudos[ i ] = createButtonPseudo( i );
+}
+
+// Easy API for creating new setFilters
+function setFilters() {}
+setFilters.prototype = Expr.filters = Expr.pseudos;
+Expr.setFilters = new setFilters();
+
+function tokenize( selector, parseOnly ) {
+ var matched, match, tokens, type,
+ soFar, groups, preFilters,
+ cached = tokenCache[ selector + " " ];
+
+ if ( cached ) {
+ return parseOnly ? 0 : cached.slice( 0 );
+ }
+
+ soFar = selector;
+ groups = [];
+ preFilters = Expr.preFilter;
+
+ while ( soFar ) {
+
+ // Comma and first run
+ if ( !matched || (match = rcomma.exec( soFar )) ) {
+ if ( match ) {
+ // Don't consume trailing commas as valid
+ soFar = soFar.slice( match[0].length ) || soFar;
+ }
+ groups.push( tokens = [] );
+ }
+
+ matched = false;
+
+ // Combinators
+ if ( (match = rcombinators.exec( soFar )) ) {
+ matched = match.shift();
+ tokens.push({
+ value: matched,
+ // Cast descendant combinators to space
+ type: match[0].replace( rtrim, " " )
+ });
+ soFar = soFar.slice( matched.length );
+ }
+
+ // Filters
+ for ( type in Expr.filter ) {
+ if ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] ||
+ (match = preFilters[ type ]( match ))) ) {
+ matched = match.shift();
+ tokens.push({
+ value: matched,
+ type: type,
+ matches: match
+ });
+ soFar = soFar.slice( matched.length );
+ }
+ }
+
+ if ( !matched ) {
+ break;
+ }
+ }
+
+ // Return the length of the invalid excess
+ // if we're just parsing
+ // Otherwise, throw an error or return tokens
+ return parseOnly ?
+ soFar.length :
+ soFar ?
+ Sizzle.error( selector ) :
+ // Cache the tokens
+ tokenCache( selector, groups ).slice( 0 );
+}
+
+function toSelector( tokens ) {
+ var i = 0,
+ len = tokens.length,
+ selector = "";
+ for ( ; i < len; i++ ) {
+ selector += tokens[i].value;
+ }
+ return selector;
+}
+
+function addCombinator( matcher, combinator, base ) {
+ var dir = combinator.dir,
+ checkNonElements = base && dir === "parentNode",
+ doneName = done++;
+
+ return combinator.first ?
+ // Check against closest ancestor/preceding element
+ function( elem, context, xml ) {
+ while ( (elem = elem[ dir ]) ) {
+ if ( elem.nodeType === 1 || checkNonElements ) {
+ return matcher( elem, context, xml );
+ }
+ }
+ } :
+
+ // Check against all ancestor/preceding elements
+ function( elem, context, xml ) {
+ var data, cache, outerCache,
+ dirkey = dirruns + " " + doneName;
+
+ // We can't set arbitrary data on XML nodes, so they don't benefit from dir caching
+ if ( xml ) {
+ while ( (elem = elem[ dir ]) ) {
+ if ( elem.nodeType === 1 || checkNonElements ) {
+ if ( matcher( elem, context, xml ) ) {
+ return true;
+ }
+ }
+ }
+ } else {
+ while ( (elem = elem[ dir ]) ) {
+ if ( elem.nodeType === 1 || checkNonElements ) {
+ outerCache = elem[ expando ] || (elem[ expando ] = {});
+ if ( (cache = outerCache[ dir ]) && cache[0] === dirkey ) {
+ if ( (data = cache[1]) === true || data === cachedruns ) {
+ return data === true;
+ }
+ } else {
+ cache = outerCache[ dir ] = [ dirkey ];
+ cache[1] = matcher( elem, context, xml ) || cachedruns;
+ if ( cache[1] === true ) {
+ return true;
+ }
+ }
+ }
+ }
+ }
+ };
+}
+
+function elementMatcher( matchers ) {
+ return matchers.length > 1 ?
+ function( elem, context, xml ) {
+ var i = matchers.length;
+ while ( i-- ) {
+ if ( !matchers[i]( elem, context, xml ) ) {
+ return false;
+ }
+ }
+ return true;
+ } :
+ matchers[0];
+}
+
+function condense( unmatched, map, filter, context, xml ) {
+ var elem,
+ newUnmatched = [],
+ i = 0,
+ len = unmatched.length,
+ mapped = map != null;
+
+ for ( ; i < len; i++ ) {
+ if ( (elem = unmatched[i]) ) {
+ if ( !filter || filter( elem, context, xml ) ) {
+ newUnmatched.push( elem );
+ if ( mapped ) {
+ map.push( i );
+ }
+ }
+ }
+ }
+
+ return newUnmatched;
+}
+
+function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) {
+ if ( postFilter && !postFilter[ expando ] ) {
+ postFilter = setMatcher( postFilter );
+ }
+ if ( postFinder && !postFinder[ expando ] ) {
+ postFinder = setMatcher( postFinder, postSelector );
+ }
+ return markFunction(function( seed, results, context, xml ) {
+ var temp, i, elem,
+ preMap = [],
+ postMap = [],
+ preexisting = results.length,
+
+ // Get initial elements from seed or context
+ elems = seed || multipleContexts( selector || "*", context.nodeType ? [ context ] : context, [] ),
+
+ // Prefilter to get matcher input, preserving a map for seed-results synchronization
+ matcherIn = preFilter && ( seed || !selector ) ?
+ condense( elems, preMap, preFilter, context, xml ) :
+ elems,
+
+ matcherOut = matcher ?
+ // If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,
+ postFinder || ( seed ? preFilter : preexisting || postFilter ) ?
+
+ // ...intermediate processing is necessary
+ [] :
+
+ // ...otherwise use results directly
+ results :
+ matcherIn;
+
+ // Find primary matches
+ if ( matcher ) {
+ matcher( matcherIn, matcherOut, context, xml );
+ }
+
+ // Apply postFilter
+ if ( postFilter ) {
+ temp = condense( matcherOut, postMap );
+ postFilter( temp, [], context, xml );
+
+ // Un-match failing elements by moving them back to matcherIn
+ i = temp.length;
+ while ( i-- ) {
+ if ( (elem = temp[i]) ) {
+ matcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem);
+ }
+ }
+ }
+
+ if ( seed ) {
+ if ( postFinder || preFilter ) {
+ if ( postFinder ) {
+ // Get the final matcherOut by condensing this intermediate into postFinder contexts
+ temp = [];
+ i = matcherOut.length;
+ while ( i-- ) {
+ if ( (elem = matcherOut[i]) ) {
+ // Restore matcherIn since elem is not yet a final match
+ temp.push( (matcherIn[i] = elem) );
+ }
+ }
+ postFinder( null, (matcherOut = []), temp, xml );
+ }
+
+ // Move matched elements from seed to results to keep them synchronized
+ i = matcherOut.length;
+ while ( i-- ) {
+ if ( (elem = matcherOut[i]) &&
+ (temp = postFinder ? indexOf.call( seed, elem ) : preMap[i]) > -1 ) {
+
+ seed[temp] = !(results[temp] = elem);
+ }
+ }
+ }
+
+ // Add elements to results, through postFinder if defined
+ } else {
+ matcherOut = condense(
+ matcherOut === results ?
+ matcherOut.splice( preexisting, matcherOut.length ) :
+ matcherOut
+ );
+ if ( postFinder ) {
+ postFinder( null, results, matcherOut, xml );
+ } else {
+ push.apply( results, matcherOut );
+ }
+ }
+ });
+}
+
+function matcherFromTokens( tokens ) {
+ var checkContext, matcher, j,
+ len = tokens.length,
+ leadingRelative = Expr.relative[ tokens[0].type ],
+ implicitRelative = leadingRelative || Expr.relative[" "],
+ i = leadingRelative ? 1 : 0,
+
+ // The foundational matcher ensures that elements are reachable from top-level context(s)
+ matchContext = addCombinator( function( elem ) {
+ return elem === checkContext;
+ }, implicitRelative, true ),
+ matchAnyContext = addCombinator( function( elem ) {
+ return indexOf.call( checkContext, elem ) > -1;
+ }, implicitRelative, true ),
+ matchers = [ function( elem, context, xml ) {
+ return ( !leadingRelative && ( xml || context !== outermostContext ) ) || (
+ (checkContext = context).nodeType ?
+ matchContext( elem, context, xml ) :
+ matchAnyContext( elem, context, xml ) );
+ } ];
+
+ for ( ; i < len; i++ ) {
+ if ( (matcher = Expr.relative[ tokens[i].type ]) ) {
+ matchers = [ addCombinator(elementMatcher( matchers ), matcher) ];
+ } else {
+ matcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches );
+
+ // Return special upon seeing a positional matcher
+ if ( matcher[ expando ] ) {
+ // Find the next relative operator (if any) for proper handling
+ j = ++i;
+ for ( ; j < len; j++ ) {
+ if ( Expr.relative[ tokens[j].type ] ) {
+ break;
+ }
+ }
+ return setMatcher(
+ i > 1 && elementMatcher( matchers ),
+ i > 1 && toSelector(
+ // If the preceding token was a descendant combinator, insert an implicit any-element `*`
+ tokens.slice( 0, i - 1 ).concat({ value: tokens[ i - 2 ].type === " " ? "*" : "" })
+ ).replace( rtrim, "$1" ),
+ matcher,
+ i < j && matcherFromTokens( tokens.slice( i, j ) ),
+ j < len && matcherFromTokens( (tokens = tokens.slice( j )) ),
+ j < len && toSelector( tokens )
+ );
+ }
+ matchers.push( matcher );
+ }
+ }
+
+ return elementMatcher( matchers );
+}
+
+function matcherFromGroupMatchers( elementMatchers, setMatchers ) {
+ // A counter to specify which element is currently being matched
+ var matcherCachedRuns = 0,
+ bySet = setMatchers.length > 0,
+ byElement = elementMatchers.length > 0,
+ superMatcher = function( seed, context, xml, results, expandContext ) {
+ var elem, j, matcher,
+ setMatched = [],
+ matchedCount = 0,
+ i = "0",
+ unmatched = seed && [],
+ outermost = expandContext != null,
+ contextBackup = outermostContext,
+ // We must always have either seed elements or context
+ elems = seed || byElement && Expr.find["TAG"]( "*", expandContext && context.parentNode || context ),
+ // Use integer dirruns iff this is the outermost matcher
+ dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1);
+
+ if ( outermost ) {
+ outermostContext = context !== document && context;
+ cachedruns = matcherCachedRuns;
+ }
+
+ // Add elements passing elementMatchers directly to results
+ // Keep `i` a string if there are no elements so `matchedCount` will be "00" below
+ for ( ; (elem = elems[i]) != null; i++ ) {
+ if ( byElement && elem ) {
+ j = 0;
+ while ( (matcher = elementMatchers[j++]) ) {
+ if ( matcher( elem, context, xml ) ) {
+ results.push( elem );
+ break;
+ }
+ }
+ if ( outermost ) {
+ dirruns = dirrunsUnique;
+ cachedruns = ++matcherCachedRuns;
+ }
+ }
+
+ // Track unmatched elements for set filters
+ if ( bySet ) {
+ // They will have gone through all possible matchers
+ if ( (elem = !matcher && elem) ) {
+ matchedCount--;
+ }
+
+ // Lengthen the array for every element, matched or not
+ if ( seed ) {
+ unmatched.push( elem );
+ }
+ }
+ }
+
+ // Apply set filters to unmatched elements
+ matchedCount += i;
+ if ( bySet && i !== matchedCount ) {
+ j = 0;
+ while ( (matcher = setMatchers[j++]) ) {
+ matcher( unmatched, setMatched, context, xml );
+ }
+
+ if ( seed ) {
+ // Reintegrate element matches to eliminate the need for sorting
+ if ( matchedCount > 0 ) {
+ while ( i-- ) {
+ if ( !(unmatched[i] || setMatched[i]) ) {
+ setMatched[i] = pop.call( results );
+ }
+ }
+ }
+
+ // Discard index placeholder values to get only actual matches
+ setMatched = condense( setMatched );
+ }
+
+ // Add matches to results
+ push.apply( results, setMatched );
+
+ // Seedless set matches succeeding multiple successful matchers stipulate sorting
+ if ( outermost && !seed && setMatched.length > 0 &&
+ ( matchedCount + setMatchers.length ) > 1 ) {
+
+ Sizzle.uniqueSort( results );
+ }
+ }
+
+ // Override manipulation of globals by nested matchers
+ if ( outermost ) {
+ dirruns = dirrunsUnique;
+ outermostContext = contextBackup;
+ }
+
+ return unmatched;
+ };
+
+ return bySet ?
+ markFunction( superMatcher ) :
+ superMatcher;
+}
+
+compile = Sizzle.compile = function( selector, group /* Internal Use Only */ ) {
+ var i,
+ setMatchers = [],
+ elementMatchers = [],
+ cached = compilerCache[ selector + " " ];
+
+ if ( !cached ) {
+ // Generate a function of recursive functions that can be used to check each element
+ if ( !group ) {
+ group = tokenize( selector );
+ }
+ i = group.length;
+ while ( i-- ) {
+ cached = matcherFromTokens( group[i] );
+ if ( cached[ expando ] ) {
+ setMatchers.push( cached );
+ } else {
+ elementMatchers.push( cached );
+ }
+ }
+
+ // Cache the compiled function
+ cached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) );
+ }
+ return cached;
+};
+
+function multipleContexts( selector, contexts, results ) {
+ var i = 0,
+ len = contexts.length;
+ for ( ; i < len; i++ ) {
+ Sizzle( selector, contexts[i], results );
+ }
+ return results;
+}
+
+function select( selector, context, results, seed ) {
+ var i, tokens, token, type, find,
+ match = tokenize( selector );
+
+ if ( !seed ) {
+ // Try to minimize operations if there is only one group
+ if ( match.length === 1 ) {
+
+ // Take a shortcut and set the context if the root selector is an ID
+ tokens = match[0] = match[0].slice( 0 );
+ if ( tokens.length > 2 && (token = tokens[0]).type === "ID" &&
+ support.getById && context.nodeType === 9 && documentIsHTML &&
+ Expr.relative[ tokens[1].type ] ) {
+
+ context = ( Expr.find["ID"]( token.matches[0].replace(runescape, funescape), context ) || [] )[0];
+ if ( !context ) {
+ return results;
+ }
+ selector = selector.slice( tokens.shift().value.length );
+ }
+
+ // Fetch a seed set for right-to-left matching
+ i = matchExpr["needsContext"].test( selector ) ? 0 : tokens.length;
+ while ( i-- ) {
+ token = tokens[i];
+
+ // Abort if we hit a combinator
+ if ( Expr.relative[ (type = token.type) ] ) {
+ break;
+ }
+ if ( (find = Expr.find[ type ]) ) {
+ // Search, expanding context for leading sibling combinators
+ if ( (seed = find(
+ token.matches[0].replace( runescape, funescape ),
+ rsibling.test( tokens[0].type ) && context.parentNode || context
+ )) ) {
+
+ // If seed is empty or no tokens remain, we can return early
+ tokens.splice( i, 1 );
+ selector = seed.length && toSelector( tokens );
+ if ( !selector ) {
+ push.apply( results, seed );
+ return results;
+ }
+
+ break;
+ }
+ }
+ }
+ }
+ }
+
+ // Compile and execute a filtering function
+ // Provide `match` to avoid retokenization if we modified the selector above
+ compile( selector, match )(
+ seed,
+ context,
+ !documentIsHTML,
+ results,
+ rsibling.test( selector )
+ );
+ return results;
+}
+
+// One-time assignments
+
+// Sort stability
+support.sortStable = expando.split("").sort( sortOrder ).join("") === expando;
+
+// Support: Chrome<14
+// Always assume duplicates if they aren't passed to the comparison function
+support.detectDuplicates = hasDuplicate;
+
+// Initialize against the default document
+setDocument();
+
+// Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27)
+// Detached nodes confoundingly follow *each other*
+support.sortDetached = assert(function( div1 ) {
+ // Should return 1, but returns 4 (following)
+ return div1.compareDocumentPosition( document.createElement("div") ) & 1;
+});
+
+// Support: IE<8
+// Prevent attribute/property "interpolation"
+// http://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
+if ( !assert(function( div ) {
+ div.innerHTML = "<a href='#'></a>";
+ return div.firstChild.getAttribute("href") === "#" ;
+}) ) {
+ addHandle( "type|href|height|width", function( elem, name, isXML ) {
+ if ( !isXML ) {
+ return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 );
+ }
+ });
+}
+
+// Support: IE<9
+// Use defaultValue in place of getAttribute("value")
+if ( !support.attributes || !assert(function( div ) {
+ div.innerHTML = "<input/>";
+ div.firstChild.setAttribute( "value", "" );
+ return div.firstChild.getAttribute( "value" ) === "";
+}) ) {
+ addHandle( "value", function( elem, name, isXML ) {
+ if ( !isXML && elem.nodeName.toLowerCase() === "input" ) {
+ return elem.defaultValue;
+ }
+ });
+}
+
+// Support: IE<9
+// Use getAttributeNode to fetch booleans when getAttribute lies
+if ( !assert(function( div ) {
+ return div.getAttribute("disabled") == null;
+}) ) {
+ addHandle( booleans, function( elem, name, isXML ) {
+ var val;
+ if ( !isXML ) {
+ return (val = elem.getAttributeNode( name )) && val.specified ?
+ val.value :
+ elem[ name ] === true ? name.toLowerCase() : null;
+ }
+ });
+}
+
+jQuery.find = Sizzle;
+jQuery.expr = Sizzle.selectors;
+jQuery.expr[":"] = jQuery.expr.pseudos;
+jQuery.unique = Sizzle.uniqueSort;
+jQuery.text = Sizzle.getText;
+jQuery.isXMLDoc = Sizzle.isXML;
+jQuery.contains = Sizzle.contains;
+
+
+})( window );
+// String to Object options format cache
+var optionsCache = {};
+
+// Convert String-formatted options into Object-formatted ones and store in cache
+function createOptions( options ) {
+ var object = optionsCache[ options ] = {};
+ jQuery.each( options.match( core_rnotwhite ) || [], function( _, flag ) {
+ object[ flag ] = true;
+ });
+ return object;
+}
+
+/*
+ * Create a callback list using the following parameters:
+ *
+ * options: an optional list of space-separated options that will change how
+ * the callback list behaves or a more traditional option object
+ *
+ * By default a callback list will act like an event callback list and can be
+ * "fired" multiple times.
+ *
+ * Possible options:
+ *
+ * once: will ensure the callback list can only be fired once (like a Deferred)
+ *
+ * memory: will keep track of previous values and will call any callback added
+ * after the list has been fired right away with the latest "memorized"
+ * values (like a Deferred)
+ *
+ * unique: will ensure a callback can only be added once (no duplicate in the list)
+ *
+ * stopOnFalse: interrupt callings when a callback returns false
+ *
+ */
+jQuery.Callbacks = function( options ) {
+
+ // Convert options from String-formatted to Object-formatted if needed
+ // (we check in cache first)
+ options = typeof options === "string" ?
+ ( optionsCache[ options ] || createOptions( options ) ) :
+ jQuery.extend( {}, options );
+
+ var // Flag to know if list is currently firing
+ firing,
+ // Last fire value (for non-forgettable lists)
+ memory,
+ // Flag to know if list was already fired
+ fired,
+ // End of the loop when firing
+ firingLength,
+ // Index of currently firing callback (modified by remove if needed)
+ firingIndex,
+ // First callback to fire (used internally by add and fireWith)
+ firingStart,
+ // Actual callback list
+ list = [],
+ // Stack of fire calls for repeatable lists
+ stack = !options.once && [],
+ // Fire callbacks
+ fire = function( data ) {
+ memory = options.memory && data;
+ fired = true;
+ firingIndex = firingStart || 0;
+ firingStart = 0;
+ firingLength = list.length;
+ firing = true;
+ for ( ; list && firingIndex < firingLength; firingIndex++ ) {
+ if ( list[ firingIndex ].apply( data[ 0 ], data[ 1 ] ) === false && options.stopOnFalse ) {
+ memory = false; // To prevent further calls using add
+ break;
+ }
+ }
+ firing = false;
+ if ( list ) {
+ if ( stack ) {
+ if ( stack.length ) {
+ fire( stack.shift() );
+ }
+ } else if ( memory ) {
+ list = [];
+ } else {
+ self.disable();
+ }
+ }
+ },
+ // Actual Callbacks object
+ self = {
+ // Add a callback or a collection of callbacks to the list
+ add: function() {
+ if ( list ) {
+ // First, we save the current length
+ var start = list.length;
+ (function add( args ) {
+ jQuery.each( args, function( _, arg ) {
+ var type = jQuery.type( arg );
+ if ( type === "function" ) {
+ if ( !options.unique || !self.has( arg ) ) {
+ list.push( arg );
+ }
+ } else if ( arg && arg.length && type !== "string" ) {
+ // Inspect recursively
+ add( arg );
+ }
+ });
+ })( arguments );
+ // Do we need to add the callbacks to the
+ // current firing batch?
+ if ( firing ) {
+ firingLength = list.length;
+ // With memory, if we're not firing then
+ // we should call right away
+ } else if ( memory ) {
+ firingStart = start;
+ fire( memory );
+ }
+ }
+ return this;
+ },
+ // Remove a callback from the list
+ remove: function() {
+ if ( list ) {
+ jQuery.each( arguments, function( _, arg ) {
+ var index;
+ while( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) {
+ list.splice( index, 1 );
+ // Handle firing indexes
+ if ( firing ) {
+ if ( index <= firingLength ) {
+ firingLength--;
+ }
+ if ( index <= firingIndex ) {
+ firingIndex--;
+ }
+ }
+ }
+ });
+ }
+ return this;
+ },
+ // Check if a given callback is in the list.
+ // If no argument is given, return whether or not list has callbacks attached.
+ has: function( fn ) {
+ return fn ? jQuery.inArray( fn, list ) > -1 : !!( list && list.length );
+ },
+ // Remove all callbacks from the list
+ empty: function() {
+ list = [];
+ firingLength = 0;
+ return this;
+ },
+ // Have the list do nothing anymore
+ disable: function() {
+ list = stack = memory = undefined;
+ return this;
+ },
+ // Is it disabled?
+ disabled: function() {
+ return !list;
+ },
+ // Lock the list in its current state
+ lock: function() {
+ stack = undefined;
+ if ( !memory ) {
+ self.disable();
+ }
+ return this;
+ },
+ // Is it locked?
+ locked: function() {
+ return !stack;
+ },
+ // Call all callbacks with the given context and arguments
+ fireWith: function( context, args ) {
+ if ( list && ( !fired || stack ) ) {
+ args = args || [];
+ args = [ context, args.slice ? args.slice() : args ];
+ if ( firing ) {
+ stack.push( args );
+ } else {
+ fire( args );
+ }
+ }
+ return this;
+ },
+ // Call all the callbacks with the given arguments
+ fire: function() {
+ self.fireWith( this, arguments );
+ return this;
+ },
+ // To know if the callbacks have already been called at least once
+ fired: function() {
+ return !!fired;
+ }
+ };
+
+ return self;
+};
+jQuery.extend({
+
+ Deferred: function( func ) {
+ var tuples = [
+ // action, add listener, listener list, final state
+ [ "resolve", "done", jQuery.Callbacks("once memory"), "resolved" ],
+ [ "reject", "fail", jQuery.Callbacks("once memory"), "rejected" ],
+ [ "notify", "progress", jQuery.Callbacks("memory") ]
+ ],
+ state = "pending",
+ promise = {
+ state: function() {
+ return state;
+ },
+ always: function() {
+ deferred.done( arguments ).fail( arguments );
+ return this;
+ },
+ then: function( /* fnDone, fnFail, fnProgress */ ) {
+ var fns = arguments;
+ return jQuery.Deferred(function( newDefer ) {
+ jQuery.each( tuples, function( i, tuple ) {
+ var action = tuple[ 0 ],
+ fn = jQuery.isFunction( fns[ i ] ) && fns[ i ];
+ // deferred[ done | fail | progress ] for forwarding actions to newDefer
+ deferred[ tuple[1] ](function() {
+ var returned = fn && fn.apply( this, arguments );
+ if ( returned && jQuery.isFunction( returned.promise ) ) {
+ returned.promise()
+ .done( newDefer.resolve )
+ .fail( newDefer.reject )
+ .progress( newDefer.notify );
+ } else {
+ newDefer[ action + "With" ]( this === promise ? newDefer.promise() : this, fn ? [ returned ] : arguments );
+ }
+ });
+ });
+ fns = null;
+ }).promise();
+ },
+ // Get a promise for this deferred
+ // If obj is provided, the promise aspect is added to the object
+ promise: function( obj ) {
+ return obj != null ? jQuery.extend( obj, promise ) : promise;
+ }
+ },
+ deferred = {};
+
+ // Keep pipe for back-compat
+ promise.pipe = promise.then;
+
+ // Add list-specific methods
+ jQuery.each( tuples, function( i, tuple ) {
+ var list = tuple[ 2 ],
+ stateString = tuple[ 3 ];
+
+ // promise[ done | fail | progress ] = list.add
+ promise[ tuple[1] ] = list.add;
+
+ // Handle state
+ if ( stateString ) {
+ list.add(function() {
+ // state = [ resolved | rejected ]
+ state = stateString;
+
+ // [ reject_list | resolve_list ].disable; progress_list.lock
+ }, tuples[ i ^ 1 ][ 2 ].disable, tuples[ 2 ][ 2 ].lock );
+ }
+
+ // deferred[ resolve | reject | notify ]
+ deferred[ tuple[0] ] = function() {
+ deferred[ tuple[0] + "With" ]( this === deferred ? promise : this, arguments );
+ return this;
+ };
+ deferred[ tuple[0] + "With" ] = list.fireWith;
+ });
+
+ // Make the deferred a promise
+ promise.promise( deferred );
+
+ // Call given func if any
+ if ( func ) {
+ func.call( deferred, deferred );
+ }
+
+ // All done!
+ return deferred;
+ },
+
+ // Deferred helper
+ when: function( subordinate /* , ..., subordinateN */ ) {
+ var i = 0,
+ resolveValues = core_slice.call( arguments ),
+ length = resolveValues.length,
+
+ // the count of uncompleted subordinates
+ remaining = length !== 1 || ( subordinate && jQuery.isFunction( subordinate.promise ) ) ? length : 0,
+
+ // the master Deferred. If resolveValues consist of only a single Deferred, just use that.
+ deferred = remaining === 1 ? subordinate : jQuery.Deferred(),
+
+ // Update function for both resolve and progress values
+ updateFunc = function( i, contexts, values ) {
+ return function( value ) {
+ contexts[ i ] = this;
+ values[ i ] = arguments.length > 1 ? core_slice.call( arguments ) : value;
+ if( values === progressValues ) {
+ deferred.notifyWith( contexts, values );
+ } else if ( !( --remaining ) ) {
+ deferred.resolveWith( contexts, values );
+ }
+ };
+ },
+
+ progressValues, progressContexts, resolveContexts;
+
+ // add listeners to Deferred subordinates; treat others as resolved
+ if ( length > 1 ) {
+ progressValues = new Array( length );
+ progressContexts = new Array( length );
+ resolveContexts = new Array( length );
+ for ( ; i < length; i++ ) {
+ if ( resolveValues[ i ] && jQuery.isFunction( resolveValues[ i ].promise ) ) {
+ resolveValues[ i ].promise()
+ .done( updateFunc( i, resolveContexts, resolveValues ) )
+ .fail( deferred.reject )
+ .progress( updateFunc( i, progressContexts, progressValues ) );
+ } else {
+ --remaining;
+ }
+ }
+ }
+
+ // if we're not waiting on anything, resolve the master
+ if ( !remaining ) {
+ deferred.resolveWith( resolveContexts, resolveValues );
+ }
+
+ return deferred.promise();
+ }
+});
+jQuery.support = (function( support ) {
+
+ var all, a, input, select, fragment, opt, eventName, isSupported, i,
+ div = document.createElement("div");
+
+ // Setup
+ div.setAttribute( "className", "t" );
+ div.innerHTML = " <link/><table></table><a href='/a'>a</a><input type='checkbox'/>";
+
+ // Finish early in limited (non-browser) environments
+ all = div.getElementsByTagName("*") || [];
+ a = div.getElementsByTagName("a")[ 0 ];
+ if ( !a || !a.style || !all.length ) {
+ return support;
+ }
+
+ // First batch of tests
+ select = document.createElement("select");
+ opt = select.appendChild( document.createElement("option") );
+ input = div.getElementsByTagName("input")[ 0 ];
+
+ a.style.cssText = "top:1px;float:left;opacity:.5";
+
+ // Test setAttribute on camelCase class. If it works, we need attrFixes when doing get/setAttribute (ie6/7)
+ support.getSetAttribute = div.className !== "t";
+
+ // IE strips leading whitespace when .innerHTML is used
+ support.leadingWhitespace = div.firstChild.nodeType === 3;
+
+ // Make sure that tbody elements aren't automatically inserted
+ // IE will insert them into empty tables
+ support.tbody = !div.getElementsByTagName("tbody").length;
+
+ // Make sure that link elements get serialized correctly by innerHTML
+ // This requires a wrapper element in IE
+ support.htmlSerialize = !!div.getElementsByTagName("link").length;
+
+ // Get the style information from getAttribute
+ // (IE uses .cssText instead)
+ support.style = /top/.test( a.getAttribute("style") );
+
+ // Make sure that URLs aren't manipulated
+ // (IE normalizes it by default)
+ support.hrefNormalized = a.getAttribute("href") === "/a";
+
+ // Make sure that element opacity exists
+ // (IE uses filter instead)
+ // Use a regex to work around a WebKit issue. See #5145
+ support.opacity = /^0.5/.test( a.style.opacity );
+
+ // Verify style float existence
+ // (IE uses styleFloat instead of cssFloat)
+ support.cssFloat = !!a.style.cssFloat;
+
+ // Check the default checkbox/radio value ("" on WebKit; "on" elsewhere)
+ support.checkOn = !!input.value;
+
+ // Make sure that a selected-by-default option has a working selected property.
+ // (WebKit defaults to false instead of true, IE too, if it's in an optgroup)
+ support.optSelected = opt.selected;
+
+ // Tests for enctype support on a form (#6743)
+ support.enctype = !!document.createElement("form").enctype;
+
+ // Makes sure cloning an html5 element does not cause problems
+ // Where outerHTML is undefined, this still works
+ support.html5Clone = document.createElement("nav").cloneNode( true ).outerHTML !== "<:nav></:nav>";
+
+ // Will be defined later
+ support.inlineBlockNeedsLayout = false;
+ support.shrinkWrapBlocks = false;
+ support.pixelPosition = false;
+ support.deleteExpando = true;
+ support.noCloneEvent = true;
+ support.reliableMarginRight = true;
+ support.boxSizingReliable = true;
+
+ // Make sure checked status is properly cloned
+ input.checked = true;
+ support.noCloneChecked = input.cloneNode( true ).checked;
+
+ // Make sure that the options inside disabled selects aren't marked as disabled
+ // (WebKit marks them as disabled)
+ select.disabled = true;
+ support.optDisabled = !opt.disabled;
+
+ // Support: IE<9
+ try {
+ delete div.test;
+ } catch( e ) {
+ support.deleteExpando = false;
+ }
+
+ // Check if we can trust getAttribute("value")
+ input = document.createElement("input");
+ input.setAttribute( "value", "" );
+ support.input = input.getAttribute( "value" ) === "";
+
+ // Check if an input maintains its value after becoming a radio
+ input.value = "t";
+ input.setAttribute( "type", "radio" );
+ support.radioValue = input.value === "t";
+
+ // #11217 - WebKit loses check when the name is after the checked attribute
+ input.setAttribute( "checked", "t" );
+ input.setAttribute( "name", "t" );
+
+ fragment = document.createDocumentFragment();
+ fragment.appendChild( input );
+
+ // Check if a disconnected checkbox will retain its checked
+ // value of true after appended to the DOM (IE6/7)
+ support.appendChecked = input.checked;
+
+ // WebKit doesn't clone checked state correctly in fragments
+ support.checkClone = fragment.cloneNode( true ).cloneNode( true ).lastChild.checked;
+
+ // Support: IE<9
+ // Opera does not clone events (and typeof div.attachEvent === undefined).
+ // IE9-10 clones events bound via attachEvent, but they don't trigger with .click()
+ if ( div.attachEvent ) {
+ div.attachEvent( "onclick", function() {
+ support.noCloneEvent = false;
+ });
+
+ div.cloneNode( true ).click();
+ }
+
+ // Support: IE<9 (lack submit/change bubble), Firefox 17+ (lack focusin event)
+ // Beware of CSP restrictions (https://developer.mozilla.org/en/Security/CSP)
+ for ( i in { submit: true, change: true, focusin: true }) {
+ div.setAttribute( eventName = "on" + i, "t" );
+
+ support[ i + "Bubbles" ] = eventName in window || div.attributes[ eventName ].expando === false;
+ }
+
+ div.style.backgroundClip = "content-box";
+ div.cloneNode( true ).style.backgroundClip = "";
+ support.clearCloneStyle = div.style.backgroundClip === "content-box";
+
+ // Support: IE<9
+ // Iteration over object's inherited properties before its own.
+ for ( i in jQuery( support ) ) {
+ break;
+ }
+ support.ownLast = i !== "0";
+
+ // Run tests that need a body at doc ready
+ jQuery(function() {
+ var container, marginDiv, tds,
+ divReset = "padding:0;margin:0;border:0;display:block;box-sizing:content-box;-moz-box-sizing:content-box;-webkit-box-sizing:content-box;",
+ body = document.getElementsByTagName("body")[0];
+
+ if ( !body ) {
+ // Return for frameset docs that don't have a body
+ return;
+ }
+
+ container = document.createElement("div");
+ container.style.cssText = "border:0;width:0;height:0;position:absolute;top:0;left:-9999px;margin-top:1px";
+
+ body.appendChild( container ).appendChild( div );
+
+ // Support: IE8
+ // Check if table cells still have offsetWidth/Height when they are set
+ // to display:none and there are still other visible table cells in a
+ // table row; if so, offsetWidth/Height are not reliable for use when
+ // determining if an element has been hidden directly using
+ // display:none (it is still safe to use offsets if a parent element is
+ // hidden; don safety goggles and see bug #4512 for more information).
+ div.innerHTML = "<table><tr><td></td><td>t</td></tr></table>";
+ tds = div.getElementsByTagName("td");
+ tds[ 0 ].style.cssText = "padding:0;margin:0;border:0;display:none";
+ isSupported = ( tds[ 0 ].offsetHeight === 0 );
+
+ tds[ 0 ].style.display = "";
+ tds[ 1 ].style.display = "none";
+
+ // Support: IE8
+ // Check if empty table cells still have offsetWidth/Height
+ support.reliableHiddenOffsets = isSupported && ( tds[ 0 ].offsetHeight === 0 );
+
+ // Check box-sizing and margin behavior.
+ div.innerHTML = "";
+ div.style.cssText = "box-sizing:border-box;-moz-box-sizing:border-box;-webkit-box-sizing:border-box;padding:1px;border:1px;display:block;width:4px;margin-top:1%;position:absolute;top:1%;";
+
+ // Workaround failing boxSizing test due to offsetWidth returning wrong value
+ // with some non-1 values of body zoom, ticket #13543
+ jQuery.swap( body, body.style.zoom != null ? { zoom: 1 } : {}, function() {
+ support.boxSizing = div.offsetWidth === 4;
+ });
+
+ // Use window.getComputedStyle because jsdom on node.js will break without it.
+ if ( window.getComputedStyle ) {
+ support.pixelPosition = ( window.getComputedStyle( div, null ) || {} ).top !== "1%";
+ support.boxSizingReliable = ( window.getComputedStyle( div, null ) || { width: "4px" } ).width === "4px";
+
+ // Check if div with explicit width and no margin-right incorrectly
+ // gets computed margin-right based on width of container. (#3333)
+ // Fails in WebKit before Feb 2011 nightlies
+ // WebKit Bug 13343 - getComputedStyle returns wrong value for margin-right
+ marginDiv = div.appendChild( document.createElement("div") );
+ marginDiv.style.cssText = div.style.cssText = divReset;
+ marginDiv.style.marginRight = marginDiv.style.width = "0";
+ div.style.width = "1px";
+
+ support.reliableMarginRight =
+ !parseFloat( ( window.getComputedStyle( marginDiv, null ) || {} ).marginRight );
+ }
+
+ if ( typeof div.style.zoom !== core_strundefined ) {
+ // Support: IE<8
+ // Check if natively block-level elements act like inline-block
+ // elements when setting their display to 'inline' and giving
+ // them layout
+ div.innerHTML = "";
+ div.style.cssText = divReset + "width:1px;padding:1px;display:inline;zoom:1";
+ support.inlineBlockNeedsLayout = ( div.offsetWidth === 3 );
+
+ // Support: IE6
+ // Check if elements with layout shrink-wrap their children
+ div.style.display = "block";
+ div.innerHTML = "<div></div>";
+ div.firstChild.style.width = "5px";
+ support.shrinkWrapBlocks = ( div.offsetWidth !== 3 );
+
+ if ( support.inlineBlockNeedsLayout ) {
+ // Prevent IE 6 from affecting layout for positioned elements #11048
+ // Prevent IE from shrinking the body in IE 7 mode #12869
+ // Support: IE<8
+ body.style.zoom = 1;
+ }
+ }
+
+ body.removeChild( container );
+
+ // Null elements to avoid leaks in IE
+ container = div = tds = marginDiv = null;
+ });
+
+ // Null elements to avoid leaks in IE
+ all = select = fragment = opt = a = input = null;
+
+ return support;
+})({});
+
+var rbrace = /(?:\{[\s\S]*\}|\[[\s\S]*\])$/,
+ rmultiDash = /([A-Z])/g;
+
+function internalData( elem, name, data, pvt /* Internal Use Only */ ){
+ if ( !jQuery.acceptData( elem ) ) {
+ return;
+ }
+
+ var ret, thisCache,
+ internalKey = jQuery.expando,
+
+ // We have to handle DOM nodes and JS objects differently because IE6-7
+ // can't GC object references properly across the DOM-JS boundary
+ isNode = elem.nodeType,
+
+ // Only DOM nodes need the global jQuery cache; JS object data is
+ // attached directly to the object so GC can occur automatically
+ cache = isNode ? jQuery.cache : elem,
+
+ // Only defining an ID for JS objects if its cache already exists allows
+ // the code to shortcut on the same path as a DOM node with no cache
+ id = isNode ? elem[ internalKey ] : elem[ internalKey ] && internalKey;
+
+ // Avoid doing any more work than we need to when trying to get data on an
+ // object that has no data at all
+ if ( (!id || !cache[id] || (!pvt && !cache[id].data)) && data === undefined && typeof name === "string" ) {
+ return;
+ }
+
+ if ( !id ) {
+ // Only DOM nodes need a new unique ID for each element since their data
+ // ends up in the global cache
+ if ( isNode ) {
+ id = elem[ internalKey ] = core_deletedIds.pop() || jQuery.guid++;
+ } else {
+ id = internalKey;
+ }
+ }
+
+ if ( !cache[ id ] ) {
+ // Avoid exposing jQuery metadata on plain JS objects when the object
+ // is serialized using JSON.stringify
+ cache[ id ] = isNode ? {} : { toJSON: jQuery.noop };
+ }
+
+ // An object can be passed to jQuery.data instead of a key/value pair; this gets
+ // shallow copied over onto the existing cache
+ if ( typeof name === "object" || typeof name === "function" ) {
+ if ( pvt ) {
+ cache[ id ] = jQuery.extend( cache[ id ], name );
+ } else {
+ cache[ id ].data = jQuery.extend( cache[ id ].data, name );
+ }
+ }
+
+ thisCache = cache[ id ];
+
+ // jQuery data() is stored in a separate object inside the object's internal data
+ // cache in order to avoid key collisions between internal data and user-defined
+ // data.
+ if ( !pvt ) {
+ if ( !thisCache.data ) {
+ thisCache.data = {};
+ }
+
+ thisCache = thisCache.data;
+ }
+
+ if ( data !== undefined ) {
+ thisCache[ jQuery.camelCase( name ) ] = data;
+ }
+
+ // Check for both converted-to-camel and non-converted data property names
+ // If a data property was specified
+ if ( typeof name === "string" ) {
+
+ // First Try to find as-is property data
+ ret = thisCache[ name ];
+
+ // Test for null|undefined property data
+ if ( ret == null ) {
+
+ // Try to find the camelCased property
+ ret = thisCache[ jQuery.camelCase( name ) ];
+ }
+ } else {
+ ret = thisCache;
+ }
+
+ return ret;
+}
+
+function internalRemoveData( elem, name, pvt ) {
+ if ( !jQuery.acceptData( elem ) ) {
+ return;
+ }
+
+ var thisCache, i,
+ isNode = elem.nodeType,
+
+ // See jQuery.data for more information
+ cache = isNode ? jQuery.cache : elem,
+ id = isNode ? elem[ jQuery.expando ] : jQuery.expando;
+
+ // If there is already no cache entry for this object, there is no
+ // purpose in continuing
+ if ( !cache[ id ] ) {
+ return;
+ }
+
+ if ( name ) {
+
+ thisCache = pvt ? cache[ id ] : cache[ id ].data;
+
+ if ( thisCache ) {
+
+ // Support array or space separated string names for data keys
+ if ( !jQuery.isArray( name ) ) {
+
+ // try the string as a key before any manipulation
+ if ( name in thisCache ) {
+ name = [ name ];
+ } else {
+
+ // split the camel cased version by spaces unless a key with the spaces exists
+ name = jQuery.camelCase( name );
+ if ( name in thisCache ) {
+ name = [ name ];
+ } else {
+ name = name.split(" ");
+ }
+ }
+ } else {
+ // If "name" is an array of keys...
+ // When data is initially created, via ("key", "val") signature,
+ // keys will be converted to camelCase.
+ // Since there is no way to tell _how_ a key was added, remove
+ // both plain key and camelCase key. #12786
+ // This will only penalize the array argument path.
+ name = name.concat( jQuery.map( name, jQuery.camelCase ) );
+ }
+
+ i = name.length;
+ while ( i-- ) {
+ delete thisCache[ name[i] ];
+ }
+
+ // If there is no data left in the cache, we want to continue
+ // and let the cache object itself get destroyed
+ if ( pvt ? !isEmptyDataObject(thisCache) : !jQuery.isEmptyObject(thisCache) ) {
+ return;
+ }
+ }
+ }
+
+ // See jQuery.data for more information
+ if ( !pvt ) {
+ delete cache[ id ].data;
+
+ // Don't destroy the parent cache unless the internal data object
+ // had been the only thing left in it
+ if ( !isEmptyDataObject( cache[ id ] ) ) {
+ return;
+ }
+ }
+
+ // Destroy the cache
+ if ( isNode ) {
+ jQuery.cleanData( [ elem ], true );
+
+ // Use delete when supported for expandos or `cache` is not a window per isWindow (#10080)
+ /* jshint eqeqeq: false */
+ } else if ( jQuery.support.deleteExpando || cache != cache.window ) {
+ /* jshint eqeqeq: true */
+ delete cache[ id ];
+
+ // When all else fails, null
+ } else {
+ cache[ id ] = null;
+ }
+}
+
+jQuery.extend({
+ cache: {},
+
+ // The following elements throw uncatchable exceptions if you
+ // attempt to add expando properties to them.
+ noData: {
+ "applet": true,
+ "embed": true,
+ // Ban all objects except for Flash (which handle expandos)
+ "object": "clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"
+ },
+
+ hasData: function( elem ) {
+ elem = elem.nodeType ? jQuery.cache[ elem[jQuery.expando] ] : elem[ jQuery.expando ];
+ return !!elem && !isEmptyDataObject( elem );
+ },
+
+ data: function( elem, name, data ) {
+ return internalData( elem, name, data );
+ },
+
+ removeData: function( elem, name ) {
+ return internalRemoveData( elem, name );
+ },
+
+ // For internal use only.
+ _data: function( elem, name, data ) {
+ return internalData( elem, name, data, true );
+ },
+
+ _removeData: function( elem, name ) {
+ return internalRemoveData( elem, name, true );
+ },
+
+ // A method for determining if a DOM node can handle the data expando
+ acceptData: function( elem ) {
+ // Do not set data on non-element because it will not be cleared (#8335).
+ if ( elem.nodeType && elem.nodeType !== 1 && elem.nodeType !== 9 ) {
+ return false;
+ }
+
+ var noData = elem.nodeName && jQuery.noData[ elem.nodeName.toLowerCase() ];
+
+ // nodes accept data unless otherwise specified; rejection can be conditional
+ return !noData || noData !== true && elem.getAttribute("classid") === noData;
+ }
+});
+
+jQuery.fn.extend({
+ data: function( key, value ) {
+ var attrs, name,
+ data = null,
+ i = 0,
+ elem = this[0];
+
+ // Special expections of .data basically thwart jQuery.access,
+ // so implement the relevant behavior ourselves
+
+ // Gets all values
+ if ( key === undefined ) {
+ if ( this.length ) {
+ data = jQuery.data( elem );
+
+ if ( elem.nodeType === 1 && !jQuery._data( elem, "parsedAttrs" ) ) {
+ attrs = elem.attributes;
+ for ( ; i < attrs.length; i++ ) {
+ name = attrs[i].name;
+
+ if ( name.indexOf("data-") === 0 ) {
+ name = jQuery.camelCase( name.slice(5) );
+
+ dataAttr( elem, name, data[ name ] );
+ }
+ }
+ jQuery._data( elem, "parsedAttrs", true );
+ }
+ }
+
+ return data;
+ }
+
+ // Sets multiple values
+ if ( typeof key === "object" ) {
+ return this.each(function() {
+ jQuery.data( this, key );
+ });
+ }
+
+ return arguments.length > 1 ?
+
+ // Sets one value
+ this.each(function() {
+ jQuery.data( this, key, value );
+ }) :
+
+ // Gets one value
+ // Try to fetch any internally stored data first
+ elem ? dataAttr( elem, key, jQuery.data( elem, key ) ) : null;
+ },
+
+ removeData: function( key ) {
+ return this.each(function() {
+ jQuery.removeData( this, key );
+ });
+ }
+});
+
+function dataAttr( elem, key, data ) {
+ // If nothing was found internally, try to fetch any
+ // data from the HTML5 data-* attribute
+ if ( data === undefined && elem.nodeType === 1 ) {
+
+ var name = "data-" + key.replace( rmultiDash, "-$1" ).toLowerCase();
+
+ data = elem.getAttribute( name );
+
+ if ( typeof data === "string" ) {
+ try {
+ data = data === "true" ? true :
+ data === "false" ? false :
+ data === "null" ? null :
+ // Only convert to a number if it doesn't change the string
+ +data + "" === data ? +data :
+ rbrace.test( data ) ? jQuery.parseJSON( data ) :
+ data;
+ } catch( e ) {}
+
+ // Make sure we set the data so it isn't changed later
+ jQuery.data( elem, key, data );
+
+ } else {
+ data = undefined;
+ }
+ }
+
+ return data;
+}
+
+// checks a cache object for emptiness
+function isEmptyDataObject( obj ) {
+ var name;
+ for ( name in obj ) {
+
+ // if the public data object is empty, the private is still empty
+ if ( name === "data" && jQuery.isEmptyObject( obj[name] ) ) {
+ continue;
+ }
+ if ( name !== "toJSON" ) {
+ return false;
+ }
+ }
+
+ return true;
+}
+jQuery.extend({
+ queue: function( elem, type, data ) {
+ var queue;
+
+ if ( elem ) {
+ type = ( type || "fx" ) + "queue";
+ queue = jQuery._data( elem, type );
+
+ // Speed up dequeue by getting out quickly if this is just a lookup
+ if ( data ) {
+ if ( !queue || jQuery.isArray(data) ) {
+ queue = jQuery._data( elem, type, jQuery.makeArray(data) );
+ } else {
+ queue.push( data );
+ }
+ }
+ return queue || [];
+ }
+ },
+
+ dequeue: function( elem, type ) {
+ type = type || "fx";
+
+ var queue = jQuery.queue( elem, type ),
+ startLength = queue.length,
+ fn = queue.shift(),
+ hooks = jQuery._queueHooks( elem, type ),
+ next = function() {
+ jQuery.dequeue( elem, type );
+ };
+
+ // If the fx queue is dequeued, always remove the progress sentinel
+ if ( fn === "inprogress" ) {
+ fn = queue.shift();
+ startLength--;
+ }
+
+ if ( fn ) {
+
+ // Add a progress sentinel to prevent the fx queue from being
+ // automatically dequeued
+ if ( type === "fx" ) {
+ queue.unshift( "inprogress" );
+ }
+
+ // clear up the last queue stop function
+ delete hooks.stop;
+ fn.call( elem, next, hooks );
+ }
+
+ if ( !startLength && hooks ) {
+ hooks.empty.fire();
+ }
+ },
+
+ // not intended for public consumption - generates a queueHooks object, or returns the current one
+ _queueHooks: function( elem, type ) {
+ var key = type + "queueHooks";
+ return jQuery._data( elem, key ) || jQuery._data( elem, key, {
+ empty: jQuery.Callbacks("once memory").add(function() {
+ jQuery._removeData( elem, type + "queue" );
+ jQuery._removeData( elem, key );
+ })
+ });
+ }
+});
+
+jQuery.fn.extend({
+ queue: function( type, data ) {
+ var setter = 2;
+
+ if ( typeof type !== "string" ) {
+ data = type;
+ type = "fx";
+ setter--;
+ }
+
+ if ( arguments.length < setter ) {
+ return jQuery.queue( this[0], type );
+ }
+
+ return data === undefined ?
+ this :
+ this.each(function() {
+ var queue = jQuery.queue( this, type, data );
+
+ // ensure a hooks for this queue
+ jQuery._queueHooks( this, type );
+
+ if ( type === "fx" && queue[0] !== "inprogress" ) {
+ jQuery.dequeue( this, type );
+ }
+ });
+ },
+ dequeue: function( type ) {
+ return this.each(function() {
+ jQuery.dequeue( this, type );
+ });
+ },
+ // Based off of the plugin by Clint Helfers, with permission.
+ // http://blindsignals.com/index.php/2009/07/jquery-delay/
+ delay: function( time, type ) {
+ time = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time;
+ type = type || "fx";
+
+ return this.queue( type, function( next, hooks ) {
+ var timeout = setTimeout( next, time );
+ hooks.stop = function() {
+ clearTimeout( timeout );
+ };
+ });
+ },
+ clearQueue: function( type ) {
+ return this.queue( type || "fx", [] );
+ },
+ // Get a promise resolved when queues of a certain type
+ // are emptied (fx is the type by default)
+ promise: function( type, obj ) {
+ var tmp,
+ count = 1,
+ defer = jQuery.Deferred(),
+ elements = this,
+ i = this.length,
+ resolve = function() {
+ if ( !( --count ) ) {
+ defer.resolveWith( elements, [ elements ] );
+ }
+ };
+
+ if ( typeof type !== "string" ) {
+ obj = type;
+ type = undefined;
+ }
+ type = type || "fx";
+
+ while( i-- ) {
+ tmp = jQuery._data( elements[ i ], type + "queueHooks" );
+ if ( tmp && tmp.empty ) {
+ count++;
+ tmp.empty.add( resolve );
+ }
+ }
+ resolve();
+ return defer.promise( obj );
+ }
+});
+var nodeHook, boolHook,
+ rclass = /[\t\r\n\f]/g,
+ rreturn = /\r/g,
+ rfocusable = /^(?:input|select|textarea|button|object)$/i,
+ rclickable = /^(?:a|area)$/i,
+ ruseDefault = /^(?:checked|selected)$/i,
+ getSetAttribute = jQuery.support.getSetAttribute,
+ getSetInput = jQuery.support.input;
+
+jQuery.fn.extend({
+ attr: function( name, value ) {
+ return jQuery.access( this, jQuery.attr, name, value, arguments.length > 1 );
+ },
+
+ removeAttr: function( name ) {
+ return this.each(function() {
+ jQuery.removeAttr( this, name );
+ });
+ },
+
+ prop: function( name, value ) {
+ return jQuery.access( this, jQuery.prop, name, value, arguments.length > 1 );
+ },
+
+ removeProp: function( name ) {
+ name = jQuery.propFix[ name ] || name;
+ return this.each(function() {
+ // try/catch handles cases where IE balks (such as removing a property on window)
+ try {
+ this[ name ] = undefined;
+ delete this[ name ];
+ } catch( e ) {}
+ });
+ },
+
+ addClass: function( value ) {
+ var classes, elem, cur, clazz, j,
+ i = 0,
+ len = this.length,
+ proceed = typeof value === "string" && value;
+
+ if ( jQuery.isFunction( value ) ) {
+ return this.each(function( j ) {
+ jQuery( this ).addClass( value.call( this, j, this.className ) );
+ });
+ }
+
+ if ( proceed ) {
+ // The disjunction here is for better compressibility (see removeClass)
+ classes = ( value || "" ).match( core_rnotwhite ) || [];
+
+ for ( ; i < len; i++ ) {
+ elem = this[ i ];
+ cur = elem.nodeType === 1 && ( elem.className ?
+ ( " " + elem.className + " " ).replace( rclass, " " ) :
+ " "
+ );
+
+ if ( cur ) {
+ j = 0;
+ while ( (clazz = classes[j++]) ) {
+ if ( cur.indexOf( " " + clazz + " " ) < 0 ) {
+ cur += clazz + " ";
+ }
+ }
+ elem.className = jQuery.trim( cur );
+
+ }
+ }
+ }
+
+ return this;
+ },
+
+ removeClass: function( value ) {
+ var classes, elem, cur, clazz, j,
+ i = 0,
+ len = this.length,
+ proceed = arguments.length === 0 || typeof value === "string" && value;
+
+ if ( jQuery.isFunction( value ) ) {
+ return this.each(function( j ) {
+ jQuery( this ).removeClass( value.call( this, j, this.className ) );
+ });
+ }
+ if ( proceed ) {
+ classes = ( value || "" ).match( core_rnotwhite ) || [];
+
+ for ( ; i < len; i++ ) {
+ elem = this[ i ];
+ // This expression is here for better compressibility (see addClass)
+ cur = elem.nodeType === 1 && ( elem.className ?
+ ( " " + elem.className + " " ).replace( rclass, " " ) :
+ ""
+ );
+
+ if ( cur ) {
+ j = 0;
+ while ( (clazz = classes[j++]) ) {
+ // Remove *all* instances
+ while ( cur.indexOf( " " + clazz + " " ) >= 0 ) {
+ cur = cur.replace( " " + clazz + " ", " " );
+ }
+ }
+ elem.className = value ? jQuery.trim( cur ) : "";
+ }
+ }
+ }
+
+ return this;
+ },
+
+ toggleClass: function( value, stateVal ) {
+ var type = typeof value;
+
+ if ( typeof stateVal === "boolean" && type === "string" ) {
+ return stateVal ? this.addClass( value ) : this.removeClass( value );
+ }
+
+ if ( jQuery.isFunction( value ) ) {
+ return this.each(function( i ) {
+ jQuery( this ).toggleClass( value.call(this, i, this.className, stateVal), stateVal );
+ });
+ }
+
+ return this.each(function() {
+ if ( type === "string" ) {
+ // toggle individual class names
+ var className,
+ i = 0,
+ self = jQuery( this ),
+ classNames = value.match( core_rnotwhite ) || [];
+
+ while ( (className = classNames[ i++ ]) ) {
+ // check each className given, space separated list
+ if ( self.hasClass( className ) ) {
+ self.removeClass( className );
+ } else {
+ self.addClass( className );
+ }
+ }
+
+ // Toggle whole class name
+ } else if ( type === core_strundefined || type === "boolean" ) {
+ if ( this.className ) {
+ // store className if set
+ jQuery._data( this, "__className__", this.className );
+ }
+
+ // If the element has a class name or if we're passed "false",
+ // then remove the whole classname (if there was one, the above saved it).
+ // Otherwise bring back whatever was previously saved (if anything),
+ // falling back to the empty string if nothing was stored.
+ this.className = this.className || value === false ? "" : jQuery._data( this, "__className__" ) || "";
+ }
+ });
+ },
+
+ hasClass: function( selector ) {
+ var className = " " + selector + " ",
+ i = 0,
+ l = this.length;
+ for ( ; i < l; i++ ) {
+ if ( this[i].nodeType === 1 && (" " + this[i].className + " ").replace(rclass, " ").indexOf( className ) >= 0 ) {
+ return true;
+ }
+ }
+
+ return false;
+ },
+
+ val: function( value ) {
+ var ret, hooks, isFunction,
+ elem = this[0];
+
+ if ( !arguments.length ) {
+ if ( elem ) {
+ hooks = jQuery.valHooks[ elem.type ] || jQuery.valHooks[ elem.nodeName.toLowerCase() ];
+
+ if ( hooks && "get" in hooks && (ret = hooks.get( elem, "value" )) !== undefined ) {
+ return ret;
+ }
+
+ ret = elem.value;
+
+ return typeof ret === "string" ?
+ // handle most common string cases
+ ret.replace(rreturn, "") :
+ // handle cases where value is null/undef or number
+ ret == null ? "" : ret;
+ }
+
+ return;
+ }
+
+ isFunction = jQuery.isFunction( value );
+
+ return this.each(function( i ) {
+ var val;
+
+ if ( this.nodeType !== 1 ) {
+ return;
+ }
+
+ if ( isFunction ) {
+ val = value.call( this, i, jQuery( this ).val() );
+ } else {
+ val = value;
+ }
+
+ // Treat null/undefined as ""; convert numbers to string
+ if ( val == null ) {
+ val = "";
+ } else if ( typeof val === "number" ) {
+ val += "";
+ } else if ( jQuery.isArray( val ) ) {
+ val = jQuery.map(val, function ( value ) {
+ return value == null ? "" : value + "";
+ });
+ }
+
+ hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ];
+
+ // If set returns undefined, fall back to normal setting
+ if ( !hooks || !("set" in hooks) || hooks.set( this, val, "value" ) === undefined ) {
+ this.value = val;
+ }
+ });
+ }
+});
+
+jQuery.extend({
+ valHooks: {
+ option: {
+ get: function( elem ) {
+ // Use proper attribute retrieval(#6932, #12072)
+ var val = jQuery.find.attr( elem, "value" );
+ return val != null ?
+ val :
+ elem.text;
+ }
+ },
+ select: {
+ get: function( elem ) {
+ var value, option,
+ options = elem.options,
+ index = elem.selectedIndex,
+ one = elem.type === "select-one" || index < 0,
+ values = one ? null : [],
+ max = one ? index + 1 : options.length,
+ i = index < 0 ?
+ max :
+ one ? index : 0;
+
+ // Loop through all the selected options
+ for ( ; i < max; i++ ) {
+ option = options[ i ];
+
+ // oldIE doesn't update selected after form reset (#2551)
+ if ( ( option.selected || i === index ) &&
+ // Don't return options that are disabled or in a disabled optgroup
+ ( jQuery.support.optDisabled ? !option.disabled : option.getAttribute("disabled") === null ) &&
+ ( !option.parentNode.disabled || !jQuery.nodeName( option.parentNode, "optgroup" ) ) ) {
+
+ // Get the specific value for the option
+ value = jQuery( option ).val();
+
+ // We don't need an array for one selects
+ if ( one ) {
+ return value;
+ }
+
+ // Multi-Selects return an array
+ values.push( value );
+ }
+ }
+
+ return values;
+ },
+
+ set: function( elem, value ) {
+ var optionSet, option,
+ options = elem.options,
+ values = jQuery.makeArray( value ),
+ i = options.length;
+
+ while ( i-- ) {
+ option = options[ i ];
+ if ( (option.selected = jQuery.inArray( jQuery(option).val(), values ) >= 0) ) {
+ optionSet = true;
+ }
+ }
+
+ // force browsers to behave consistently when non-matching value is set
+ if ( !optionSet ) {
+ elem.selectedIndex = -1;
+ }
+ return values;
+ }
+ }
+ },
+
+ attr: function( elem, name, value ) {
+ var hooks, ret,
+ nType = elem.nodeType;
+
+ // don't get/set attributes on text, comment and attribute nodes
+ if ( !elem || nType === 3 || nType === 8 || nType === 2 ) {
+ return;
+ }
+
+ // Fallback to prop when attributes are not supported
+ if ( typeof elem.getAttribute === core_strundefined ) {
+ return jQuery.prop( elem, name, value );
+ }
+
+ // All attributes are lowercase
+ // Grab necessary hook if one is defined
+ if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
+ name = name.toLowerCase();
+ hooks = jQuery.attrHooks[ name ] ||
+ ( jQuery.expr.match.bool.test( name ) ? boolHook : nodeHook );
+ }
+
+ if ( value !== undefined ) {
+
+ if ( value === null ) {
+ jQuery.removeAttr( elem, name );
+
+ } else if ( hooks && "set" in hooks && (ret = hooks.set( elem, value, name )) !== undefined ) {
+ return ret;
+
+ } else {
+ elem.setAttribute( name, value + "" );
+ return value;
+ }
+
+ } else if ( hooks && "get" in hooks && (ret = hooks.get( elem, name )) !== null ) {
+ return ret;
+
+ } else {
+ ret = jQuery.find.attr( elem, name );
+
+ // Non-existent attributes return null, we normalize to undefined
+ return ret == null ?
+ undefined :
+ ret;
+ }
+ },
+
+ removeAttr: function( elem, value ) {
+ var name, propName,
+ i = 0,
+ attrNames = value && value.match( core_rnotwhite );
+
+ if ( attrNames && elem.nodeType === 1 ) {
+ while ( (name = attrNames[i++]) ) {
+ propName = jQuery.propFix[ name ] || name;
+
+ // Boolean attributes get special treatment (#10870)
+ if ( jQuery.expr.match.bool.test( name ) ) {
+ // Set corresponding property to false
+ if ( getSetInput && getSetAttribute || !ruseDefault.test( name ) ) {
+ elem[ propName ] = false;
+ // Support: IE<9
+ // Also clear defaultChecked/defaultSelected (if appropriate)
+ } else {
+ elem[ jQuery.camelCase( "default-" + name ) ] =
+ elem[ propName ] = false;
+ }
+
+ // See #9699 for explanation of this approach (setting first, then removal)
+ } else {
+ jQuery.attr( elem, name, "" );
+ }
+
+ elem.removeAttribute( getSetAttribute ? name : propName );
+ }
+ }
+ },
+
+ attrHooks: {
+ type: {
+ set: function( elem, value ) {
+ if ( !jQuery.support.radioValue && value === "radio" && jQuery.nodeName(elem, "input") ) {
+ // Setting the type on a radio button after the value resets the value in IE6-9
+ // Reset value to default in case type is set after value during creation
+ var val = elem.value;
+ elem.setAttribute( "type", value );
+ if ( val ) {
+ elem.value = val;
+ }
+ return value;
+ }
+ }
+ }
+ },
+
+ propFix: {
+ "for": "htmlFor",
+ "class": "className"
+ },
+
+ prop: function( elem, name, value ) {
+ var ret, hooks, notxml,
+ nType = elem.nodeType;
+
+ // don't get/set properties on text, comment and attribute nodes
+ if ( !elem || nType === 3 || nType === 8 || nType === 2 ) {
+ return;
+ }
+
+ notxml = nType !== 1 || !jQuery.isXMLDoc( elem );
+
+ if ( notxml ) {
+ // Fix name and attach hooks
+ name = jQuery.propFix[ name ] || name;
+ hooks = jQuery.propHooks[ name ];
+ }
+
+ if ( value !== undefined ) {
+ return hooks && "set" in hooks && (ret = hooks.set( elem, value, name )) !== undefined ?
+ ret :
+ ( elem[ name ] = value );
+
+ } else {
+ return hooks && "get" in hooks && (ret = hooks.get( elem, name )) !== null ?
+ ret :
+ elem[ name ];
+ }
+ },
+
+ propHooks: {
+ tabIndex: {
+ get: function( elem ) {
+ // elem.tabIndex doesn't always return the correct value when it hasn't been explicitly set
+ // http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/
+ // Use proper attribute retrieval(#12072)
+ var tabindex = jQuery.find.attr( elem, "tabindex" );
+
+ return tabindex ?
+ parseInt( tabindex, 10 ) :
+ rfocusable.test( elem.nodeName ) || rclickable.test( elem.nodeName ) && elem.href ?
+ 0 :
+ -1;
+ }
+ }
+ }
+});
+
+// Hooks for boolean attributes
+boolHook = {
+ set: function( elem, value, name ) {
+ if ( value === false ) {
+ // Remove boolean attributes when set to false
+ jQuery.removeAttr( elem, name );
+ } else if ( getSetInput && getSetAttribute || !ruseDefault.test( name ) ) {
+ // IE<8 needs the *property* name
+ elem.setAttribute( !getSetAttribute && jQuery.propFix[ name ] || name, name );
+
+ // Use defaultChecked and defaultSelected for oldIE
+ } else {
+ elem[ jQuery.camelCase( "default-" + name ) ] = elem[ name ] = true;
+ }
+
+ return name;
+ }
+};
+jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( i, name ) {
+ var getter = jQuery.expr.attrHandle[ name ] || jQuery.find.attr;
+
+ jQuery.expr.attrHandle[ name ] = getSetInput && getSetAttribute || !ruseDefault.test( name ) ?
+ function( elem, name, isXML ) {
+ var fn = jQuery.expr.attrHandle[ name ],
+ ret = isXML ?
+ undefined :
+ /* jshint eqeqeq: false */
+ (jQuery.expr.attrHandle[ name ] = undefined) !=
+ getter( elem, name, isXML ) ?
+
+ name.toLowerCase() :
+ null;
+ jQuery.expr.attrHandle[ name ] = fn;
+ return ret;
+ } :
+ function( elem, name, isXML ) {
+ return isXML ?
+ undefined :
+ elem[ jQuery.camelCase( "default-" + name ) ] ?
+ name.toLowerCase() :
+ null;
+ };
+});
+
+// fix oldIE attroperties
+if ( !getSetInput || !getSetAttribute ) {
+ jQuery.attrHooks.value = {
+ set: function( elem, value, name ) {
+ if ( jQuery.nodeName( elem, "input" ) ) {
+ // Does not return so that setAttribute is also used
+ elem.defaultValue = value;
+ } else {
+ // Use nodeHook if defined (#1954); otherwise setAttribute is fine
+ return nodeHook && nodeHook.set( elem, value, name );
+ }
+ }
+ };
+}
+
+// IE6/7 do not support getting/setting some attributes with get/setAttribute
+if ( !getSetAttribute ) {
+
+ // Use this for any attribute in IE6/7
+ // This fixes almost every IE6/7 issue
+ nodeHook = {
+ set: function( elem, value, name ) {
+ // Set the existing or create a new attribute node
+ var ret = elem.getAttributeNode( name );
+ if ( !ret ) {
+ elem.setAttributeNode(
+ (ret = elem.ownerDocument.createAttribute( name ))
+ );
+ }
+
+ ret.value = value += "";
+
+ // Break association with cloned elements by also using setAttribute (#9646)
+ return name === "value" || value === elem.getAttribute( name ) ?
+ value :
+ undefined;
+ }
+ };
+ jQuery.expr.attrHandle.id = jQuery.expr.attrHandle.name = jQuery.expr.attrHandle.coords =
+ // Some attributes are constructed with empty-string values when not defined
+ function( elem, name, isXML ) {
+ var ret;
+ return isXML ?
+ undefined :
+ (ret = elem.getAttributeNode( name )) && ret.value !== "" ?
+ ret.value :
+ null;
+ };
+ jQuery.valHooks.button = {
+ get: function( elem, name ) {
+ var ret = elem.getAttributeNode( name );
+ return ret && ret.specified ?
+ ret.value :
+ undefined;
+ },
+ set: nodeHook.set
+ };
+
+ // Set contenteditable to false on removals(#10429)
+ // Setting to empty string throws an error as an invalid value
+ jQuery.attrHooks.contenteditable = {
+ set: function( elem, value, name ) {
+ nodeHook.set( elem, value === "" ? false : value, name );
+ }
+ };
+
+ // Set width and height to auto instead of 0 on empty string( Bug #8150 )
+ // This is for removals
+ jQuery.each([ "width", "height" ], function( i, name ) {
+ jQuery.attrHooks[ name ] = {
+ set: function( elem, value ) {
+ if ( value === "" ) {
+ elem.setAttribute( name, "auto" );
+ return value;
+ }
+ }
+ };
+ });
+}
+
+
+// Some attributes require a special call on IE
+// http://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
+if ( !jQuery.support.hrefNormalized ) {
+ // href/src property should get the full normalized URL (#10299/#12915)
+ jQuery.each([ "href", "src" ], function( i, name ) {
+ jQuery.propHooks[ name ] = {
+ get: function( elem ) {
+ return elem.getAttribute( name, 4 );
+ }
+ };
+ });
+}
+
+if ( !jQuery.support.style ) {
+ jQuery.attrHooks.style = {
+ get: function( elem ) {
+ // Return undefined in the case of empty string
+ // Note: IE uppercases css property names, but if we were to .toLowerCase()
+ // .cssText, that would destroy case senstitivity in URL's, like in "background"
+ return elem.style.cssText || undefined;
+ },
+ set: function( elem, value ) {
+ return ( elem.style.cssText = value + "" );
+ }
+ };
+}
+
+// Safari mis-reports the default selected property of an option
+// Accessing the parent's selectedIndex property fixes it
+if ( !jQuery.support.optSelected ) {
+ jQuery.propHooks.selected = {
+ get: function( elem ) {
+ var parent = elem.parentNode;
+
+ if ( parent ) {
+ parent.selectedIndex;
+
+ // Make sure that it also works with optgroups, see #5701
+ if ( parent.parentNode ) {
+ parent.parentNode.selectedIndex;
+ }
+ }
+ return null;
+ }
+ };
+}
+
+jQuery.each([
+ "tabIndex",
+ "readOnly",
+ "maxLength",
+ "cellSpacing",
+ "cellPadding",
+ "rowSpan",
+ "colSpan",
+ "useMap",
+ "frameBorder",
+ "contentEditable"
+], function() {
+ jQuery.propFix[ this.toLowerCase() ] = this;
+});
+
+// IE6/7 call enctype encoding
+if ( !jQuery.support.enctype ) {
+ jQuery.propFix.enctype = "encoding";
+}
+
+// Radios and checkboxes getter/setter
+jQuery.each([ "radio", "checkbox" ], function() {
+ jQuery.valHooks[ this ] = {
+ set: function( elem, value ) {
+ if ( jQuery.isArray( value ) ) {
+ return ( elem.checked = jQuery.inArray( jQuery(elem).val(), value ) >= 0 );
+ }
+ }
+ };
+ if ( !jQuery.support.checkOn ) {
+ jQuery.valHooks[ this ].get = function( elem ) {
+ // Support: Webkit
+ // "" is returned instead of "on" if a value isn't specified
+ return elem.getAttribute("value") === null ? "on" : elem.value;
+ };
+ }
+});
+var rformElems = /^(?:input|select|textarea)$/i,
+ rkeyEvent = /^key/,
+ rmouseEvent = /^(?:mouse|contextmenu)|click/,
+ rfocusMorph = /^(?:focusinfocus|focusoutblur)$/,
+ rtypenamespace = /^([^.]*)(?:\.(.+)|)$/;
+
+function returnTrue() {
+ return true;
+}
+
+function returnFalse() {
+ return false;
+}
+
+function safeActiveElement() {
+ try {
+ return document.activeElement;
+ } catch ( err ) { }
+}
+
+/*
+ * Helper functions for managing events -- not part of the public interface.
+ * Props to Dean Edwards' addEvent library for many of the ideas.
+ */
+jQuery.event = {
+
+ global: {},
+
+ add: function( elem, types, handler, data, selector ) {
+ var tmp, events, t, handleObjIn,
+ special, eventHandle, handleObj,
+ handlers, type, namespaces, origType,
+ elemData = jQuery._data( elem );
+
+ // Don't attach events to noData or text/comment nodes (but allow plain objects)
+ if ( !elemData ) {
+ return;
+ }
+
+ // Caller can pass in an object of custom data in lieu of the handler
+ if ( handler.handler ) {
+ handleObjIn = handler;
+ handler = handleObjIn.handler;
+ selector = handleObjIn.selector;
+ }
+
+ // Make sure that the handler has a unique ID, used to find/remove it later
+ if ( !handler.guid ) {
+ handler.guid = jQuery.guid++;
+ }
+
+ // Init the element's event structure and main handler, if this is the first
+ if ( !(events = elemData.events) ) {
+ events = elemData.events = {};
+ }
+ if ( !(eventHandle = elemData.handle) ) {
+ eventHandle = elemData.handle = function( e ) {
+ // Discard the second event of a jQuery.event.trigger() and
+ // when an event is called after a page has unloaded
+ return typeof jQuery !== core_strundefined && (!e || jQuery.event.triggered !== e.type) ?
+ jQuery.event.dispatch.apply( eventHandle.elem, arguments ) :
+ undefined;
+ };
+ // Add elem as a property of the handle fn to prevent a memory leak with IE non-native events
+ eventHandle.elem = elem;
+ }
+
+ // Handle multiple events separated by a space
+ types = ( types || "" ).match( core_rnotwhite ) || [""];
+ t = types.length;
+ while ( t-- ) {
+ tmp = rtypenamespace.exec( types[t] ) || [];
+ type = origType = tmp[1];
+ namespaces = ( tmp[2] || "" ).split( "." ).sort();
+
+ // There *must* be a type, no attaching namespace-only handlers
+ if ( !type ) {
+ continue;
+ }
+
+ // If event changes its type, use the special event handlers for the changed type
+ special = jQuery.event.special[ type ] || {};
+
+ // If selector defined, determine special event api type, otherwise given type
+ type = ( selector ? special.delegateType : special.bindType ) || type;
+
+ // Update special based on newly reset type
+ special = jQuery.event.special[ type ] || {};
+
+ // handleObj is passed to all event handlers
+ handleObj = jQuery.extend({
+ type: type,
+ origType: origType,
+ data: data,
+ handler: handler,
+ guid: handler.guid,
+ selector: selector,
+ needsContext: selector && jQuery.expr.match.needsContext.test( selector ),
+ namespace: namespaces.join(".")
+ }, handleObjIn );
+
+ // Init the event handler queue if we're the first
+ if ( !(handlers = events[ type ]) ) {
+ handlers = events[ type ] = [];
+ handlers.delegateCount = 0;
+
+ // Only use addEventListener/attachEvent if the special events handler returns false
+ if ( !special.setup || special.setup.call( elem, data, namespaces, eventHandle ) === false ) {
+ // Bind the global event handler to the element
+ if ( elem.addEventListener ) {
+ elem.addEventListener( type, eventHandle, false );
+
+ } else if ( elem.attachEvent ) {
+ elem.attachEvent( "on" + type, eventHandle );
+ }
+ }
+ }
+
+ if ( special.add ) {
+ special.add.call( elem, handleObj );
+
+ if ( !handleObj.handler.guid ) {
+ handleObj.handler.guid = handler.guid;
+ }
+ }
+
+ // Add to the element's handler list, delegates in front
+ if ( selector ) {
+ handlers.splice( handlers.delegateCount++, 0, handleObj );
+ } else {
+ handlers.push( handleObj );
+ }
+
+ // Keep track of which events have ever been used, for event optimization
+ jQuery.event.global[ type ] = true;
+ }
+
+ // Nullify elem to prevent memory leaks in IE
+ elem = null;
+ },
+
+ // Detach an event or set of events from an element
+ remove: function( elem, types, handler, selector, mappedTypes ) {
+ var j, handleObj, tmp,
+ origCount, t, events,
+ special, handlers, type,
+ namespaces, origType,
+ elemData = jQuery.hasData( elem ) && jQuery._data( elem );
+
+ if ( !elemData || !(events = elemData.events) ) {
+ return;
+ }
+
+ // Once for each type.namespace in types; type may be omitted
+ types = ( types || "" ).match( core_rnotwhite ) || [""];
+ t = types.length;
+ while ( t-- ) {
+ tmp = rtypenamespace.exec( types[t] ) || [];
+ type = origType = tmp[1];
+ namespaces = ( tmp[2] || "" ).split( "." ).sort();
+
+ // Unbind all events (on this namespace, if provided) for the element
+ if ( !type ) {
+ for ( type in events ) {
+ jQuery.event.remove( elem, type + types[ t ], handler, selector, true );
+ }
+ continue;
+ }
+
+ special = jQuery.event.special[ type ] || {};
+ type = ( selector ? special.delegateType : special.bindType ) || type;
+ handlers = events[ type ] || [];
+ tmp = tmp[2] && new RegExp( "(^|\\.)" + namespaces.join("\\.(?:.*\\.|)") + "(\\.|$)" );
+
+ // Remove matching events
+ origCount = j = handlers.length;
+ while ( j-- ) {
+ handleObj = handlers[ j ];
+
+ if ( ( mappedTypes || origType === handleObj.origType ) &&
+ ( !handler || handler.guid === handleObj.guid ) &&
+ ( !tmp || tmp.test( handleObj.namespace ) ) &&
+ ( !selector || selector === handleObj.selector || selector === "**" && handleObj.selector ) ) {
+ handlers.splice( j, 1 );
+
+ if ( handleObj.selector ) {
+ handlers.delegateCount--;
+ }
+ if ( special.remove ) {
+ special.remove.call( elem, handleObj );
+ }
+ }
+ }
+
+ // Remove generic event handler if we removed something and no more handlers exist
+ // (avoids potential for endless recursion during removal of special event handlers)
+ if ( origCount && !handlers.length ) {
+ if ( !special.teardown || special.teardown.call( elem, namespaces, elemData.handle ) === false ) {
+ jQuery.removeEvent( elem, type, elemData.handle );
+ }
+
+ delete events[ type ];
+ }
+ }
+
+ // Remove the expando if it's no longer used
+ if ( jQuery.isEmptyObject( events ) ) {
+ delete elemData.handle;
+
+ // removeData also checks for emptiness and clears the expando if empty
+ // so use it instead of delete
+ jQuery._removeData( elem, "events" );
+ }
+ },
+
+ trigger: function( event, data, elem, onlyHandlers ) {
+ var handle, ontype, cur,
+ bubbleType, special, tmp, i,
+ eventPath = [ elem || document ],
+ type = core_hasOwn.call( event, "type" ) ? event.type : event,
+ namespaces = core_hasOwn.call( event, "namespace" ) ? event.namespace.split(".") : [];
+
+ cur = tmp = elem = elem || document;
+
+ // Don't do events on text and comment nodes
+ if ( elem.nodeType === 3 || elem.nodeType === 8 ) {
+ return;
+ }
+
+ // focus/blur morphs to focusin/out; ensure we're not firing them right now
+ if ( rfocusMorph.test( type + jQuery.event.triggered ) ) {
+ return;
+ }
+
+ if ( type.indexOf(".") >= 0 ) {
+ // Namespaced trigger; create a regexp to match event type in handle()
+ namespaces = type.split(".");
+ type = namespaces.shift();
+ namespaces.sort();
+ }
+ ontype = type.indexOf(":") < 0 && "on" + type;
+
+ // Caller can pass in a jQuery.Event object, Object, or just an event type string
+ event = event[ jQuery.expando ] ?
+ event :
+ new jQuery.Event( type, typeof event === "object" && event );
+
+ // Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true)
+ event.isTrigger = onlyHandlers ? 2 : 3;
+ event.namespace = namespaces.join(".");
+ event.namespace_re = event.namespace ?
+ new RegExp( "(^|\\.)" + namespaces.join("\\.(?:.*\\.|)") + "(\\.|$)" ) :
+ null;
+
+ // Clean up the event in case it is being reused
+ event.result = undefined;
+ if ( !event.target ) {
+ event.target = elem;
+ }
+
+ // Clone any incoming data and prepend the event, creating the handler arg list
+ data = data == null ?
+ [ event ] :
+ jQuery.makeArray( data, [ event ] );
+
+ // Allow special events to draw outside the lines
+ special = jQuery.event.special[ type ] || {};
+ if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) {
+ return;
+ }
+
+ // Determine event propagation path in advance, per W3C events spec (#9951)
+ // Bubble up to document, then to window; watch for a global ownerDocument var (#9724)
+ if ( !onlyHandlers && !special.noBubble && !jQuery.isWindow( elem ) ) {
+
+ bubbleType = special.delegateType || type;
+ if ( !rfocusMorph.test( bubbleType + type ) ) {
+ cur = cur.parentNode;
+ }
+ for ( ; cur; cur = cur.parentNode ) {
+ eventPath.push( cur );
+ tmp = cur;
+ }
+
+ // Only add window if we got to document (e.g., not plain obj or detached DOM)
+ if ( tmp === (elem.ownerDocument || document) ) {
+ eventPath.push( tmp.defaultView || tmp.parentWindow || window );
+ }
+ }
+
+ // Fire handlers on the event path
+ i = 0;
+ while ( (cur = eventPath[i++]) && !event.isPropagationStopped() ) {
+
+ event.type = i > 1 ?
+ bubbleType :
+ special.bindType || type;
+
+ // jQuery handler
+ handle = ( jQuery._data( cur, "events" ) || {} )[ event.type ] && jQuery._data( cur, "handle" );
+ if ( handle ) {
+ handle.apply( cur, data );
+ }
+
+ // Native handler
+ handle = ontype && cur[ ontype ];
+ if ( handle && jQuery.acceptData( cur ) && handle.apply && handle.apply( cur, data ) === false ) {
+ event.preventDefault();
+ }
+ }
+ event.type = type;
+
+ // If nobody prevented the default action, do it now
+ if ( !onlyHandlers && !event.isDefaultPrevented() ) {
+
+ if ( (!special._default || special._default.apply( eventPath.pop(), data ) === false) &&
+ jQuery.acceptData( elem ) ) {
+
+ // Call a native DOM method on the target with the same name name as the event.
+ // Can't use an .isFunction() check here because IE6/7 fails that test.
+ // Don't do default actions on window, that's where global variables be (#6170)
+ if ( ontype && elem[ type ] && !jQuery.isWindow( elem ) ) {
+
+ // Don't re-trigger an onFOO event when we call its FOO() method
+ tmp = elem[ ontype ];
+
+ if ( tmp ) {
+ elem[ ontype ] = null;
+ }
+
+ // Prevent re-triggering of the same event, since we already bubbled it above
+ jQuery.event.triggered = type;
+ try {
+ elem[ type ]();
+ } catch ( e ) {
+ // IE<9 dies on focus/blur to hidden element (#1486,#12518)
+ // only reproducible on winXP IE8 native, not IE9 in IE8 mode
+ }
+ jQuery.event.triggered = undefined;
+
+ if ( tmp ) {
+ elem[ ontype ] = tmp;
+ }
+ }
+ }
+ }
+
+ return event.result;
+ },
+
+ dispatch: function( event ) {
+
+ // Make a writable jQuery.Event from the native event object
+ event = jQuery.event.fix( event );
+
+ var i, ret, handleObj, matched, j,
+ handlerQueue = [],
+ args = core_slice.call( arguments ),
+ handlers = ( jQuery._data( this, "events" ) || {} )[ event.type ] || [],
+ special = jQuery.event.special[ event.type ] || {};
+
+ // Use the fix-ed jQuery.Event rather than the (read-only) native event
+ args[0] = event;
+ event.delegateTarget = this;
+
+ // Call the preDispatch hook for the mapped type, and let it bail if desired
+ if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) {
+ return;
+ }
+
+ // Determine handlers
+ handlerQueue = jQuery.event.handlers.call( this, event, handlers );
+
+ // Run delegates first; they may want to stop propagation beneath us
+ i = 0;
+ while ( (matched = handlerQueue[ i++ ]) && !event.isPropagationStopped() ) {
+ event.currentTarget = matched.elem;
+
+ j = 0;
+ while ( (handleObj = matched.handlers[ j++ ]) && !event.isImmediatePropagationStopped() ) {
+
+ // Triggered event must either 1) have no namespace, or
+ // 2) have namespace(s) a subset or equal to those in the bound event (both can have no namespace).
+ if ( !event.namespace_re || event.namespace_re.test( handleObj.namespace ) ) {
+
+ event.handleObj = handleObj;
+ event.data = handleObj.data;
+
+ ret = ( (jQuery.event.special[ handleObj.origType ] || {}).handle || handleObj.handler )
+ .apply( matched.elem, args );
+
+ if ( ret !== undefined ) {
+ if ( (event.result = ret) === false ) {
+ event.preventDefault();
+ event.stopPropagation();
+ }
+ }
+ }
+ }
+ }
+
+ // Call the postDispatch hook for the mapped type
+ if ( special.postDispatch ) {
+ special.postDispatch.call( this, event );
+ }
+
+ return event.result;
+ },
+
+ handlers: function( event, handlers ) {
+ var sel, handleObj, matches, i,
+ handlerQueue = [],
+ delegateCount = handlers.delegateCount,
+ cur = event.target;
+
+ // Find delegate handlers
+ // Black-hole SVG <use> instance trees (#13180)
+ // Avoid non-left-click bubbling in Firefox (#3861)
+ if ( delegateCount && cur.nodeType && (!event.button || event.type !== "click") ) {
+
+ /* jshint eqeqeq: false */
+ for ( ; cur != this; cur = cur.parentNode || this ) {
+ /* jshint eqeqeq: true */
+
+ // Don't check non-elements (#13208)
+ // Don't process clicks on disabled elements (#6911, #8165, #11382, #11764)
+ if ( cur.nodeType === 1 && (cur.disabled !== true || event.type !== "click") ) {
+ matches = [];
+ for ( i = 0; i < delegateCount; i++ ) {
+ handleObj = handlers[ i ];
+
+ // Don't conflict with Object.prototype properties (#13203)
+ sel = handleObj.selector + " ";
+
+ if ( matches[ sel ] === undefined ) {
+ matches[ sel ] = handleObj.needsContext ?
+ jQuery( sel, this ).index( cur ) >= 0 :
+ jQuery.find( sel, this, null, [ cur ] ).length;
+ }
+ if ( matches[ sel ] ) {
+ matches.push( handleObj );
+ }
+ }
+ if ( matches.length ) {
+ handlerQueue.push({ elem: cur, handlers: matches });
+ }
+ }
+ }
+ }
+
+ // Add the remaining (directly-bound) handlers
+ if ( delegateCount < handlers.length ) {
+ handlerQueue.push({ elem: this, handlers: handlers.slice( delegateCount ) });
+ }
+
+ return handlerQueue;
+ },
+
+ fix: function( event ) {
+ if ( event[ jQuery.expando ] ) {
+ return event;
+ }
+
+ // Create a writable copy of the event object and normalize some properties
+ var i, prop, copy,
+ type = event.type,
+ originalEvent = event,
+ fixHook = this.fixHooks[ type ];
+
+ if ( !fixHook ) {
+ this.fixHooks[ type ] = fixHook =
+ rmouseEvent.test( type ) ? this.mouseHooks :
+ rkeyEvent.test( type ) ? this.keyHooks :
+ {};
+ }
+ copy = fixHook.props ? this.props.concat( fixHook.props ) : this.props;
+
+ event = new jQuery.Event( originalEvent );
+
+ i = copy.length;
+ while ( i-- ) {
+ prop = copy[ i ];
+ event[ prop ] = originalEvent[ prop ];
+ }
+
+ // Support: IE<9
+ // Fix target property (#1925)
+ if ( !event.target ) {
+ event.target = originalEvent.srcElement || document;
+ }
+
+ // Support: Chrome 23+, Safari?
+ // Target should not be a text node (#504, #13143)
+ if ( event.target.nodeType === 3 ) {
+ event.target = event.target.parentNode;
+ }
+
+ // Support: IE<9
+ // For mouse/key events, metaKey==false if it's undefined (#3368, #11328)
+ event.metaKey = !!event.metaKey;
+
+ return fixHook.filter ? fixHook.filter( event, originalEvent ) : event;
+ },
+
+ // Includes some event props shared by KeyEvent and MouseEvent
+ props: "altKey bubbles cancelable ctrlKey currentTarget eventPhase metaKey relatedTarget shiftKey target timeStamp view which".split(" "),
+
+ fixHooks: {},
+
+ keyHooks: {
+ props: "char charCode key keyCode".split(" "),
+ filter: function( event, original ) {
+
+ // Add which for key events
+ if ( event.which == null ) {
+ event.which = original.charCode != null ? original.charCode : original.keyCode;
+ }
+
+ return event;
+ }
+ },
+
+ mouseHooks: {
+ props: "button buttons clientX clientY fromElement offsetX offsetY pageX pageY screenX screenY toElement".split(" "),
+ filter: function( event, original ) {
+ var body, eventDoc, doc,
+ button = original.button,
+ fromElement = original.fromElement;
+
+ // Calculate pageX/Y if missing and clientX/Y available
+ if ( event.pageX == null && original.clientX != null ) {
+ eventDoc = event.target.ownerDocument || document;
+ doc = eventDoc.documentElement;
+ body = eventDoc.body;
+
+ event.pageX = original.clientX + ( doc && doc.scrollLeft || body && body.scrollLeft || 0 ) - ( doc && doc.clientLeft || body && body.clientLeft || 0 );
+ event.pageY = original.clientY + ( doc && doc.scrollTop || body && body.scrollTop || 0 ) - ( doc && doc.clientTop || body && body.clientTop || 0 );
+ }
+
+ // Add relatedTarget, if necessary
+ if ( !event.relatedTarget && fromElement ) {
+ event.relatedTarget = fromElement === event.target ? original.toElement : fromElement;
+ }
+
+ // Add which for click: 1 === left; 2 === middle; 3 === right
+ // Note: button is not normalized, so don't use it
+ if ( !event.which && button !== undefined ) {
+ event.which = ( button & 1 ? 1 : ( button & 2 ? 3 : ( button & 4 ? 2 : 0 ) ) );
+ }
+
+ return event;
+ }
+ },
+
+ special: {
+ load: {
+ // Prevent triggered image.load events from bubbling to window.load
+ noBubble: true
+ },
+ focus: {
+ // Fire native event if possible so blur/focus sequence is correct
+ trigger: function() {
+ if ( this !== safeActiveElement() && this.focus ) {
+ try {
+ this.focus();
+ return false;
+ } catch ( e ) {
+ // Support: IE<9
+ // If we error on focus to hidden element (#1486, #12518),
+ // let .trigger() run the handlers
+ }
+ }
+ },
+ delegateType: "focusin"
+ },
+ blur: {
+ trigger: function() {
+ if ( this === safeActiveElement() && this.blur ) {
+ this.blur();
+ return false;
+ }
+ },
+ delegateType: "focusout"
+ },
+ click: {
+ // For checkbox, fire native event so checked state will be right
+ trigger: function() {
+ if ( jQuery.nodeName( this, "input" ) && this.type === "checkbox" && this.click ) {
+ this.click();
+ return false;
+ }
+ },
+
+ // For cross-browser consistency, don't fire native .click() on links
+ _default: function( event ) {
+ return jQuery.nodeName( event.target, "a" );
+ }
+ },
+
+ beforeunload: {
+ postDispatch: function( event ) {
+
+ // Even when returnValue equals to undefined Firefox will still show alert
+ if ( event.result !== undefined ) {
+ event.originalEvent.returnValue = event.result;
+ }
+ }
+ }
+ },
+
+ simulate: function( type, elem, event, bubble ) {
+ // Piggyback on a donor event to simulate a different one.
+ // Fake originalEvent to avoid donor's stopPropagation, but if the
+ // simulated event prevents default then we do the same on the donor.
+ var e = jQuery.extend(
+ new jQuery.Event(),
+ event,
+ {
+ type: type,
+ isSimulated: true,
+ originalEvent: {}
+ }
+ );
+ if ( bubble ) {
+ jQuery.event.trigger( e, null, elem );
+ } else {
+ jQuery.event.dispatch.call( elem, e );
+ }
+ if ( e.isDefaultPrevented() ) {
+ event.preventDefault();
+ }
+ }
+};
+
+jQuery.removeEvent = document.removeEventListener ?
+ function( elem, type, handle ) {
+ if ( elem.removeEventListener ) {
+ elem.removeEventListener( type, handle, false );
+ }
+ } :
+ function( elem, type, handle ) {
+ var name = "on" + type;
+
+ if ( elem.detachEvent ) {
+
+ // #8545, #7054, preventing memory leaks for custom events in IE6-8
+ // detachEvent needed property on element, by name of that event, to properly expose it to GC
+ if ( typeof elem[ name ] === core_strundefined ) {
+ elem[ name ] = null;
+ }
+
+ elem.detachEvent( name, handle );
+ }
+ };
+
+jQuery.Event = function( src, props ) {
+ // Allow instantiation without the 'new' keyword
+ if ( !(this instanceof jQuery.Event) ) {
+ return new jQuery.Event( src, props );
+ }
+
+ // Event object
+ if ( src && src.type ) {
+ this.originalEvent = src;
+ this.type = src.type;
+
+ // Events bubbling up the document may have been marked as prevented
+ // by a handler lower down the tree; reflect the correct value.
+ this.isDefaultPrevented = ( src.defaultPrevented || src.returnValue === false ||
+ src.getPreventDefault && src.getPreventDefault() ) ? returnTrue : returnFalse;
+
+ // Event type
+ } else {
+ this.type = src;
+ }
+
+ // Put explicitly provided properties onto the event object
+ if ( props ) {
+ jQuery.extend( this, props );
+ }
+
+ // Create a timestamp if incoming event doesn't have one
+ this.timeStamp = src && src.timeStamp || jQuery.now();
+
+ // Mark it as fixed
+ this[ jQuery.expando ] = true;
+};
+
+// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding
+// http://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html
+jQuery.Event.prototype = {
+ isDefaultPrevented: returnFalse,
+ isPropagationStopped: returnFalse,
+ isImmediatePropagationStopped: returnFalse,
+
+ preventDefault: function() {
+ var e = this.originalEvent;
+
+ this.isDefaultPrevented = returnTrue;
+ if ( !e ) {
+ return;
+ }
+
+ // If preventDefault exists, run it on the original event
+ if ( e.preventDefault ) {
+ e.preventDefault();
+
+ // Support: IE
+ // Otherwise set the returnValue property of the original event to false
+ } else {
+ e.returnValue = false;
+ }
+ },
+ stopPropagation: function() {
+ var e = this.originalEvent;
+
+ this.isPropagationStopped = returnTrue;
+ if ( !e ) {
+ return;
+ }
+ // If stopPropagation exists, run it on the original event
+ if ( e.stopPropagation ) {
+ e.stopPropagation();
+ }
+
+ // Support: IE
+ // Set the cancelBubble property of the original event to true
+ e.cancelBubble = true;
+ },
+ stopImmediatePropagation: function() {
+ this.isImmediatePropagationStopped = returnTrue;
+ this.stopPropagation();
+ }
+};
+
+// Create mouseenter/leave events using mouseover/out and event-time checks
+jQuery.each({
+ mouseenter: "mouseover",
+ mouseleave: "mouseout"
+}, function( orig, fix ) {
+ jQuery.event.special[ orig ] = {
+ delegateType: fix,
+ bindType: fix,
+
+ handle: function( event ) {
+ var ret,
+ target = this,
+ related = event.relatedTarget,
+ handleObj = event.handleObj;
+
+ // For mousenter/leave call the handler if related is outside the target.
+ // NB: No relatedTarget if the mouse left/entered the browser window
+ if ( !related || (related !== target && !jQuery.contains( target, related )) ) {
+ event.type = handleObj.origType;
+ ret = handleObj.handler.apply( this, arguments );
+ event.type = fix;
+ }
+ return ret;
+ }
+ };
+});
+
+// IE submit delegation
+if ( !jQuery.support.submitBubbles ) {
+
+ jQuery.event.special.submit = {
+ setup: function() {
+ // Only need this for delegated form submit events
+ if ( jQuery.nodeName( this, "form" ) ) {
+ return false;
+ }
+
+ // Lazy-add a submit handler when a descendant form may potentially be submitted
+ jQuery.event.add( this, "click._submit keypress._submit", function( e ) {
+ // Node name check avoids a VML-related crash in IE (#9807)
+ var elem = e.target,
+ form = jQuery.nodeName( elem, "input" ) || jQuery.nodeName( elem, "button" ) ? elem.form : undefined;
+ if ( form && !jQuery._data( form, "submitBubbles" ) ) {
+ jQuery.event.add( form, "submit._submit", function( event ) {
+ event._submit_bubble = true;
+ });
+ jQuery._data( form, "submitBubbles", true );
+ }
+ });
+ // return undefined since we don't need an event listener
+ },
+
+ postDispatch: function( event ) {
+ // If form was submitted by the user, bubble the event up the tree
+ if ( event._submit_bubble ) {
+ delete event._submit_bubble;
+ if ( this.parentNode && !event.isTrigger ) {
+ jQuery.event.simulate( "submit", this.parentNode, event, true );
+ }
+ }
+ },
+
+ teardown: function() {
+ // Only need this for delegated form submit events
+ if ( jQuery.nodeName( this, "form" ) ) {
+ return false;
+ }
+
+ // Remove delegated handlers; cleanData eventually reaps submit handlers attached above
+ jQuery.event.remove( this, "._submit" );
+ }
+ };
+}
+
+// IE change delegation and checkbox/radio fix
+if ( !jQuery.support.changeBubbles ) {
+
+ jQuery.event.special.change = {
+
+ setup: function() {
+
+ if ( rformElems.test( this.nodeName ) ) {
+ // IE doesn't fire change on a check/radio until blur; trigger it on click
+ // after a propertychange. Eat the blur-change in special.change.handle.
+ // This still fires onchange a second time for check/radio after blur.
+ if ( this.type === "checkbox" || this.type === "radio" ) {
+ jQuery.event.add( this, "propertychange._change", function( event ) {
+ if ( event.originalEvent.propertyName === "checked" ) {
+ this._just_changed = true;
+ }
+ });
+ jQuery.event.add( this, "click._change", function( event ) {
+ if ( this._just_changed && !event.isTrigger ) {
+ this._just_changed = false;
+ }
+ // Allow triggered, simulated change events (#11500)
+ jQuery.event.simulate( "change", this, event, true );
+ });
+ }
+ return false;
+ }
+ // Delegated event; lazy-add a change handler on descendant inputs
+ jQuery.event.add( this, "beforeactivate._change", function( e ) {
+ var elem = e.target;
+
+ if ( rformElems.test( elem.nodeName ) && !jQuery._data( elem, "changeBubbles" ) ) {
+ jQuery.event.add( elem, "change._change", function( event ) {
+ if ( this.parentNode && !event.isSimulated && !event.isTrigger ) {
+ jQuery.event.simulate( "change", this.parentNode, event, true );
+ }
+ });
+ jQuery._data( elem, "changeBubbles", true );
+ }
+ });
+ },
+
+ handle: function( event ) {
+ var elem = event.target;
+
+ // Swallow native change events from checkbox/radio, we already triggered them above
+ if ( this !== elem || event.isSimulated || event.isTrigger || (elem.type !== "radio" && elem.type !== "checkbox") ) {
+ return event.handleObj.handler.apply( this, arguments );
+ }
+ },
+
+ teardown: function() {
+ jQuery.event.remove( this, "._change" );
+
+ return !rformElems.test( this.nodeName );
+ }
+ };
+}
+
+// Create "bubbling" focus and blur events
+if ( !jQuery.support.focusinBubbles ) {
+ jQuery.each({ focus: "focusin", blur: "focusout" }, function( orig, fix ) {
+
+ // Attach a single capturing handler while someone wants focusin/focusout
+ var attaches = 0,
+ handler = function( event ) {
+ jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ), true );
+ };
+
+ jQuery.event.special[ fix ] = {
+ setup: function() {
+ if ( attaches++ === 0 ) {
+ document.addEventListener( orig, handler, true );
+ }
+ },
+ teardown: function() {
+ if ( --attaches === 0 ) {
+ document.removeEventListener( orig, handler, true );
+ }
+ }
+ };
+ });
+}
+
+jQuery.fn.extend({
+
+ on: function( types, selector, data, fn, /*INTERNAL*/ one ) {
+ var type, origFn;
+
+ // Types can be a map of types/handlers
+ if ( typeof types === "object" ) {
+ // ( types-Object, selector, data )
+ if ( typeof selector !== "string" ) {
+ // ( types-Object, data )
+ data = data || selector;
+ selector = undefined;
+ }
+ for ( type in types ) {
+ this.on( type, selector, data, types[ type ], one );
+ }
+ return this;
+ }
+
+ if ( data == null && fn == null ) {
+ // ( types, fn )
+ fn = selector;
+ data = selector = undefined;
+ } else if ( fn == null ) {
+ if ( typeof selector === "string" ) {
+ // ( types, selector, fn )
+ fn = data;
+ data = undefined;
+ } else {
+ // ( types, data, fn )
+ fn = data;
+ data = selector;
+ selector = undefined;
+ }
+ }
+ if ( fn === false ) {
+ fn = returnFalse;
+ } else if ( !fn ) {
+ return this;
+ }
+
+ if ( one === 1 ) {
+ origFn = fn;
+ fn = function( event ) {
+ // Can use an empty set, since event contains the info
+ jQuery().off( event );
+ return origFn.apply( this, arguments );
+ };
+ // Use same guid so caller can remove using origFn
+ fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ );
+ }
+ return this.each( function() {
+ jQuery.event.add( this, types, fn, data, selector );
+ });
+ },
+ one: function( types, selector, data, fn ) {
+ return this.on( types, selector, data, fn, 1 );
+ },
+ off: function( types, selector, fn ) {
+ var handleObj, type;
+ if ( types && types.preventDefault && types.handleObj ) {
+ // ( event ) dispatched jQuery.Event
+ handleObj = types.handleObj;
+ jQuery( types.delegateTarget ).off(
+ handleObj.namespace ? handleObj.origType + "." + handleObj.namespace : handleObj.origType,
+ handleObj.selector,
+ handleObj.handler
+ );
+ return this;
+ }
+ if ( typeof types === "object" ) {
+ // ( types-object [, selector] )
+ for ( type in types ) {
+ this.off( type, selector, types[ type ] );
+ }
+ return this;
+ }
+ if ( selector === false || typeof selector === "function" ) {
+ // ( types [, fn] )
+ fn = selector;
+ selector = undefined;
+ }
+ if ( fn === false ) {
+ fn = returnFalse;
+ }
+ return this.each(function() {
+ jQuery.event.remove( this, types, fn, selector );
+ });
+ },
+
+ trigger: function( type, data ) {
+ return this.each(function() {
+ jQuery.event.trigger( type, data, this );
+ });
+ },
+ triggerHandler: function( type, data ) {
+ var elem = this[0];
+ if ( elem ) {
+ return jQuery.event.trigger( type, data, elem, true );
+ }
+ }
+});
+var isSimple = /^.[^:#\[\.,]*$/,
+ rparentsprev = /^(?:parents|prev(?:Until|All))/,
+ rneedsContext = jQuery.expr.match.needsContext,
+ // methods guaranteed to produce a unique set when starting from a unique set
+ guaranteedUnique = {
+ children: true,
+ contents: true,
+ next: true,
+ prev: true
+ };
+
+jQuery.fn.extend({
+ find: function( selector ) {
+ var i,
+ ret = [],
+ self = this,
+ len = self.length;
+
+ if ( typeof selector !== "string" ) {
+ return this.pushStack( jQuery( selector ).filter(function() {
+ for ( i = 0; i < len; i++ ) {
+ if ( jQuery.contains( self[ i ], this ) ) {
+ return true;
+ }
+ }
+ }) );
+ }
+
+ for ( i = 0; i < len; i++ ) {
+ jQuery.find( selector, self[ i ], ret );
+ }
+
+ // Needed because $( selector, context ) becomes $( context ).find( selector )
+ ret = this.pushStack( len > 1 ? jQuery.unique( ret ) : ret );
+ ret.selector = this.selector ? this.selector + " " + selector : selector;
+ return ret;
+ },
+
+ has: function( target ) {
+ var i,
+ targets = jQuery( target, this ),
+ len = targets.length;
+
+ return this.filter(function() {
+ for ( i = 0; i < len; i++ ) {
+ if ( jQuery.contains( this, targets[i] ) ) {
+ return true;
+ }
+ }
+ });
+ },
+
+ not: function( selector ) {
+ return this.pushStack( winnow(this, selector || [], true) );
+ },
+
+ filter: function( selector ) {
+ return this.pushStack( winnow(this, selector || [], false) );
+ },
+
+ is: function( selector ) {
+ return !!winnow(
+ this,
+
+ // If this is a positional/relative selector, check membership in the returned set
+ // so $("p:first").is("p:last") won't return true for a doc with two "p".
+ typeof selector === "string" && rneedsContext.test( selector ) ?
+ jQuery( selector ) :
+ selector || [],
+ false
+ ).length;
+ },
+
+ closest: function( selectors, context ) {
+ var cur,
+ i = 0,
+ l = this.length,
+ ret = [],
+ pos = rneedsContext.test( selectors ) || typeof selectors !== "string" ?
+ jQuery( selectors, context || this.context ) :
+ 0;
+
+ for ( ; i < l; i++ ) {
+ for ( cur = this[i]; cur && cur !== context; cur = cur.parentNode ) {
+ // Always skip document fragments
+ if ( cur.nodeType < 11 && (pos ?
+ pos.index(cur) > -1 :
+
+ // Don't pass non-elements to Sizzle
+ cur.nodeType === 1 &&
+ jQuery.find.matchesSelector(cur, selectors)) ) {
+
+ cur = ret.push( cur );
+ break;
+ }
+ }
+ }
+
+ return this.pushStack( ret.length > 1 ? jQuery.unique( ret ) : ret );
+ },
+
+ // Determine the position of an element within
+ // the matched set of elements
+ index: function( elem ) {
+
+ // No argument, return index in parent
+ if ( !elem ) {
+ return ( this[0] && this[0].parentNode ) ? this.first().prevAll().length : -1;
+ }
+
+ // index in selector
+ if ( typeof elem === "string" ) {
+ return jQuery.inArray( this[0], jQuery( elem ) );
+ }
+
+ // Locate the position of the desired element
+ return jQuery.inArray(
+ // If it receives a jQuery object, the first element is used
+ elem.jquery ? elem[0] : elem, this );
+ },
+
+ add: function( selector, context ) {
+ var set = typeof selector === "string" ?
+ jQuery( selector, context ) :
+ jQuery.makeArray( selector && selector.nodeType ? [ selector ] : selector ),
+ all = jQuery.merge( this.get(), set );
+
+ return this.pushStack( jQuery.unique(all) );
+ },
+
+ addBack: function( selector ) {
+ return this.add( selector == null ?
+ this.prevObject : this.prevObject.filter(selector)
+ );
+ }
+});
+
+function sibling( cur, dir ) {
+ do {
+ cur = cur[ dir ];
+ } while ( cur && cur.nodeType !== 1 );
+
+ return cur;
+}
+
+jQuery.each({
+ parent: function( elem ) {
+ var parent = elem.parentNode;
+ return parent && parent.nodeType !== 11 ? parent : null;
+ },
+ parents: function( elem ) {
+ return jQuery.dir( elem, "parentNode" );
+ },
+ parentsUntil: function( elem, i, until ) {
+ return jQuery.dir( elem, "parentNode", until );
+ },
+ next: function( elem ) {
+ return sibling( elem, "nextSibling" );
+ },
+ prev: function( elem ) {
+ return sibling( elem, "previousSibling" );
+ },
+ nextAll: function( elem ) {
+ return jQuery.dir( elem, "nextSibling" );
+ },
+ prevAll: function( elem ) {
+ return jQuery.dir( elem, "previousSibling" );
+ },
+ nextUntil: function( elem, i, until ) {
+ return jQuery.dir( elem, "nextSibling", until );
+ },
+ prevUntil: function( elem, i, until ) {
+ return jQuery.dir( elem, "previousSibling", until );
+ },
+ siblings: function( elem ) {
+ return jQuery.sibling( ( elem.parentNode || {} ).firstChild, elem );
+ },
+ children: function( elem ) {
+ return jQuery.sibling( elem.firstChild );
+ },
+ contents: function( elem ) {
+ return jQuery.nodeName( elem, "iframe" ) ?
+ elem.contentDocument || elem.contentWindow.document :
+ jQuery.merge( [], elem.childNodes );
+ }
+}, function( name, fn ) {
+ jQuery.fn[ name ] = function( until, selector ) {
+ var ret = jQuery.map( this, fn, until );
+
+ if ( name.slice( -5 ) !== "Until" ) {
+ selector = until;
+ }
+
+ if ( selector && typeof selector === "string" ) {
+ ret = jQuery.filter( selector, ret );
+ }
+
+ if ( this.length > 1 ) {
+ // Remove duplicates
+ if ( !guaranteedUnique[ name ] ) {
+ ret = jQuery.unique( ret );
+ }
+
+ // Reverse order for parents* and prev-derivatives
+ if ( rparentsprev.test( name ) ) {
+ ret = ret.reverse();
+ }
+ }
+
+ return this.pushStack( ret );
+ };
+});
+
+jQuery.extend({
+ filter: function( expr, elems, not ) {
+ var elem = elems[ 0 ];
+
+ if ( not ) {
+ expr = ":not(" + expr + ")";
+ }
+
+ return elems.length === 1 && elem.nodeType === 1 ?
+ jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : [] :
+ jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) {
+ return elem.nodeType === 1;
+ }));
+ },
+
+ dir: function( elem, dir, until ) {
+ var matched = [],
+ cur = elem[ dir ];
+
+ while ( cur && cur.nodeType !== 9 && (until === undefined || cur.nodeType !== 1 || !jQuery( cur ).is( until )) ) {
+ if ( cur.nodeType === 1 ) {
+ matched.push( cur );
+ }
+ cur = cur[dir];
+ }
+ return matched;
+ },
+
+ sibling: function( n, elem ) {
+ var r = [];
+
+ for ( ; n; n = n.nextSibling ) {
+ if ( n.nodeType === 1 && n !== elem ) {
+ r.push( n );
+ }
+ }
+
+ return r;
+ }
+});
+
+// Implement the identical functionality for filter and not
+function winnow( elements, qualifier, not ) {
+ if ( jQuery.isFunction( qualifier ) ) {
+ return jQuery.grep( elements, function( elem, i ) {
+ /* jshint -W018 */
+ return !!qualifier.call( elem, i, elem ) !== not;
+ });
+
+ }
+
+ if ( qualifier.nodeType ) {
+ return jQuery.grep( elements, function( elem ) {
+ return ( elem === qualifier ) !== not;
+ });
+
+ }
+
+ if ( typeof qualifier === "string" ) {
+ if ( isSimple.test( qualifier ) ) {
+ return jQuery.filter( qualifier, elements, not );
+ }
+
+ qualifier = jQuery.filter( qualifier, elements );
+ }
+
+ return jQuery.grep( elements, function( elem ) {
+ return ( jQuery.inArray( elem, qualifier ) >= 0 ) !== not;
+ });
+}
+function createSafeFragment( document ) {
+ var list = nodeNames.split( "|" ),
+ safeFrag = document.createDocumentFragment();
+
+ if ( safeFrag.createElement ) {
+ while ( list.length ) {
+ safeFrag.createElement(
+ list.pop()
+ );
+ }
+ }
+ return safeFrag;
+}
+
+var nodeNames = "abbr|article|aside|audio|bdi|canvas|data|datalist|details|figcaption|figure|footer|" +
+ "header|hgroup|mark|meter|nav|output|progress|section|summary|time|video",
+ rinlinejQuery = / jQuery\d+="(?:null|\d+)"/g,
+ rnoshimcache = new RegExp("<(?:" + nodeNames + ")[\\s/>]", "i"),
+ rleadingWhitespace = /^\s+/,
+ rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\w:]+)[^>]*)\/>/gi,
+ rtagName = /<([\w:]+)/,
+ rtbody = /<tbody/i,
+ rhtml = /<|&#?\w+;/,
+ rnoInnerhtml = /<(?:script|style|link)/i,
+ manipulation_rcheckableType = /^(?:checkbox|radio)$/i,
+ // checked="checked" or checked
+ rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,
+ rscriptType = /^$|\/(?:java|ecma)script/i,
+ rscriptTypeMasked = /^true\/(.*)/,
+ rcleanScript = /^\s*<!(?:\[CDATA\[|--)|(?:\]\]|--)>\s*$/g,
+
+ // We have to close these tags to support XHTML (#13200)
+ wrapMap = {
+ option: [ 1, "<select multiple='multiple'>", "</select>" ],
+ legend: [ 1, "<fieldset>", "</fieldset>" ],
+ area: [ 1, "<map>", "</map>" ],
+ param: [ 1, "<object>", "</object>" ],
+ thead: [ 1, "<table>", "</table>" ],
+ tr: [ 2, "<table><tbody>", "</tbody></table>" ],
+ col: [ 2, "<table><tbody></tbody><colgroup>", "</colgroup></table>" ],
+ td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],
+
+ // IE6-8 can't serialize link, script, style, or any html5 (NoScope) tags,
+ // unless wrapped in a div with non-breaking characters in front of it.
+ _default: jQuery.support.htmlSerialize ? [ 0, "", "" ] : [ 1, "X<div>", "</div>" ]
+ },
+ safeFragment = createSafeFragment( document ),
+ fragmentDiv = safeFragment.appendChild( document.createElement("div") );
+
+wrapMap.optgroup = wrapMap.option;
+wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
+wrapMap.th = wrapMap.td;
+
+jQuery.fn.extend({
+ text: function( value ) {
+ return jQuery.access( this, function( value ) {
+ return value === undefined ?
+ jQuery.text( this ) :
+ this.empty().append( ( this[0] && this[0].ownerDocument || document ).createTextNode( value ) );
+ }, null, value, arguments.length );
+ },
+
+ append: function() {
+ return this.domManip( arguments, function( elem ) {
+ if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
+ var target = manipulationTarget( this, elem );
+ target.appendChild( elem );
+ }
+ });
+ },
+
+ prepend: function() {
+ return this.domManip( arguments, function( elem ) {
+ if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
+ var target = manipulationTarget( this, elem );
+ target.insertBefore( elem, target.firstChild );
+ }
+ });
+ },
+
+ before: function() {
+ return this.domManip( arguments, function( elem ) {
+ if ( this.parentNode ) {
+ this.parentNode.insertBefore( elem, this );
+ }
+ });
+ },
+
+ after: function() {
+ return this.domManip( arguments, function( elem ) {
+ if ( this.parentNode ) {
+ this.parentNode.insertBefore( elem, this.nextSibling );
+ }
+ });
+ },
+
+ // keepData is for internal use only--do not document
+ remove: function( selector, keepData ) {
+ var elem,
+ elems = selector ? jQuery.filter( selector, this ) : this,
+ i = 0;
+
+ for ( ; (elem = elems[i]) != null; i++ ) {
+
+ if ( !keepData && elem.nodeType === 1 ) {
+ jQuery.cleanData( getAll( elem ) );
+ }
+
+ if ( elem.parentNode ) {
+ if ( keepData && jQuery.contains( elem.ownerDocument, elem ) ) {
+ setGlobalEval( getAll( elem, "script" ) );
+ }
+ elem.parentNode.removeChild( elem );
+ }
+ }
+
+ return this;
+ },
+
+ empty: function() {
+ var elem,
+ i = 0;
+
+ for ( ; (elem = this[i]) != null; i++ ) {
+ // Remove element nodes and prevent memory leaks
+ if ( elem.nodeType === 1 ) {
+ jQuery.cleanData( getAll( elem, false ) );
+ }
+
+ // Remove any remaining nodes
+ while ( elem.firstChild ) {
+ elem.removeChild( elem.firstChild );
+ }
+
+ // If this is a select, ensure that it displays empty (#12336)
+ // Support: IE<9
+ if ( elem.options && jQuery.nodeName( elem, "select" ) ) {
+ elem.options.length = 0;
+ }
+ }
+
+ return this;
+ },
+
+ clone: function( dataAndEvents, deepDataAndEvents ) {
+ dataAndEvents = dataAndEvents == null ? false : dataAndEvents;
+ deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents;
+
+ return this.map( function () {
+ return jQuery.clone( this, dataAndEvents, deepDataAndEvents );
+ });
+ },
+
+ html: function( value ) {
+ return jQuery.access( this, function( value ) {
+ var elem = this[0] || {},
+ i = 0,
+ l = this.length;
+
+ if ( value === undefined ) {
+ return elem.nodeType === 1 ?
+ elem.innerHTML.replace( rinlinejQuery, "" ) :
+ undefined;
+ }
+
+ // See if we can take a shortcut and just use innerHTML
+ if ( typeof value === "string" && !rnoInnerhtml.test( value ) &&
+ ( jQuery.support.htmlSerialize || !rnoshimcache.test( value ) ) &&
+ ( jQuery.support.leadingWhitespace || !rleadingWhitespace.test( value ) ) &&
+ !wrapMap[ ( rtagName.exec( value ) || ["", ""] )[1].toLowerCase() ] ) {
+
+ value = value.replace( rxhtmlTag, "<$1></$2>" );
+
+ try {
+ for (; i < l; i++ ) {
+ // Remove element nodes and prevent memory leaks
+ elem = this[i] || {};
+ if ( elem.nodeType === 1 ) {
+ jQuery.cleanData( getAll( elem, false ) );
+ elem.innerHTML = value;
+ }
+ }
+
+ elem = 0;
+
+ // If using innerHTML throws an exception, use the fallback method
+ } catch(e) {}
+ }
+
+ if ( elem ) {
+ this.empty().append( value );
+ }
+ }, null, value, arguments.length );
+ },
+
+ replaceWith: function() {
+ var
+ // Snapshot the DOM in case .domManip sweeps something relevant into its fragment
+ args = jQuery.map( this, function( elem ) {
+ return [ elem.nextSibling, elem.parentNode ];
+ }),
+ i = 0;
+
+ // Make the changes, replacing each context element with the new content
+ this.domManip( arguments, function( elem ) {
+ var next = args[ i++ ],
+ parent = args[ i++ ];
+
+ if ( parent ) {
+ // Don't use the snapshot next if it has moved (#13810)
+ if ( next && next.parentNode !== parent ) {
+ next = this.nextSibling;
+ }
+ jQuery( this ).remove();
+ parent.insertBefore( elem, next );
+ }
+ // Allow new content to include elements from the context set
+ }, true );
+
+ // Force removal if there was no new content (e.g., from empty arguments)
+ return i ? this : this.remove();
+ },
+
+ detach: function( selector ) {
+ return this.remove( selector, true );
+ },
+
+ domManip: function( args, callback, allowIntersection ) {
+
+ // Flatten any nested arrays
+ args = core_concat.apply( [], args );
+
+ var first, node, hasScripts,
+ scripts, doc, fragment,
+ i = 0,
+ l = this.length,
+ set = this,
+ iNoClone = l - 1,
+ value = args[0],
+ isFunction = jQuery.isFunction( value );
+
+ // We can't cloneNode fragments that contain checked, in WebKit
+ if ( isFunction || !( l <= 1 || typeof value !== "string" || jQuery.support.checkClone || !rchecked.test( value ) ) ) {
+ return this.each(function( index ) {
+ var self = set.eq( index );
+ if ( isFunction ) {
+ args[0] = value.call( this, index, self.html() );
+ }
+ self.domManip( args, callback, allowIntersection );
+ });
+ }
+
+ if ( l ) {
+ fragment = jQuery.buildFragment( args, this[ 0 ].ownerDocument, false, !allowIntersection && this );
+ first = fragment.firstChild;
+
+ if ( fragment.childNodes.length === 1 ) {
+ fragment = first;
+ }
+
+ if ( first ) {
+ scripts = jQuery.map( getAll( fragment, "script" ), disableScript );
+ hasScripts = scripts.length;
+
+ // Use the original fragment for the last item instead of the first because it can end up
+ // being emptied incorrectly in certain situations (#8070).
+ for ( ; i < l; i++ ) {
+ node = fragment;
+
+ if ( i !== iNoClone ) {
+ node = jQuery.clone( node, true, true );
+
+ // Keep references to cloned scripts for later restoration
+ if ( hasScripts ) {
+ jQuery.merge( scripts, getAll( node, "script" ) );
+ }
+ }
+
+ callback.call( this[i], node, i );
+ }
+
+ if ( hasScripts ) {
+ doc = scripts[ scripts.length - 1 ].ownerDocument;
+
+ // Reenable scripts
+ jQuery.map( scripts, restoreScript );
+
+ // Evaluate executable scripts on first document insertion
+ for ( i = 0; i < hasScripts; i++ ) {
+ node = scripts[ i ];
+ if ( rscriptType.test( node.type || "" ) &&
+ !jQuery._data( node, "globalEval" ) && jQuery.contains( doc, node ) ) {
+
+ if ( node.src ) {
+ // Hope ajax is available...
+ jQuery._evalUrl( node.src );
+ } else {
+ jQuery.globalEval( ( node.text || node.textContent || node.innerHTML || "" ).replace( rcleanScript, "" ) );
+ }
+ }
+ }
+ }
+
+ // Fix #11809: Avoid leaking memory
+ fragment = first = null;
+ }
+ }
+
+ return this;
+ }
+});
+
+// Support: IE<8
+// Manipulating tables requires a tbody
+function manipulationTarget( elem, content ) {
+ return jQuery.nodeName( elem, "table" ) &&
+ jQuery.nodeName( content.nodeType === 1 ? content : content.firstChild, "tr" ) ?
+
+ elem.getElementsByTagName("tbody")[0] ||
+ elem.appendChild( elem.ownerDocument.createElement("tbody") ) :
+ elem;
+}
+
+// Replace/restore the type attribute of script elements for safe DOM manipulation
+function disableScript( elem ) {
+ elem.type = (jQuery.find.attr( elem, "type" ) !== null) + "/" + elem.type;
+ return elem;
+}
+function restoreScript( elem ) {
+ var match = rscriptTypeMasked.exec( elem.type );
+ if ( match ) {
+ elem.type = match[1];
+ } else {
+ elem.removeAttribute("type");
+ }
+ return elem;
+}
+
+// Mark scripts as having already been evaluated
+function setGlobalEval( elems, refElements ) {
+ var elem,
+ i = 0;
+ for ( ; (elem = elems[i]) != null; i++ ) {
+ jQuery._data( elem, "globalEval", !refElements || jQuery._data( refElements[i], "globalEval" ) );
+ }
+}
+
+function cloneCopyEvent( src, dest ) {
+
+ if ( dest.nodeType !== 1 || !jQuery.hasData( src ) ) {
+ return;
+ }
+
+ var type, i, l,
+ oldData = jQuery._data( src ),
+ curData = jQuery._data( dest, oldData ),
+ events = oldData.events;
+
+ if ( events ) {
+ delete curData.handle;
+ curData.events = {};
+
+ for ( type in events ) {
+ for ( i = 0, l = events[ type ].length; i < l; i++ ) {
+ jQuery.event.add( dest, type, events[ type ][ i ] );
+ }
+ }
+ }
+
+ // make the cloned public data object a copy from the original
+ if ( curData.data ) {
+ curData.data = jQuery.extend( {}, curData.data );
+ }
+}
+
+function fixCloneNodeIssues( src, dest ) {
+ var nodeName, e, data;
+
+ // We do not need to do anything for non-Elements
+ if ( dest.nodeType !== 1 ) {
+ return;
+ }
+
+ nodeName = dest.nodeName.toLowerCase();
+
+ // IE6-8 copies events bound via attachEvent when using cloneNode.
+ if ( !jQuery.support.noCloneEvent && dest[ jQuery.expando ] ) {
+ data = jQuery._data( dest );
+
+ for ( e in data.events ) {
+ jQuery.removeEvent( dest, e, data.handle );
+ }
+
+ // Event data gets referenced instead of copied if the expando gets copied too
+ dest.removeAttribute( jQuery.expando );
+ }
+
+ // IE blanks contents when cloning scripts, and tries to evaluate newly-set text
+ if ( nodeName === "script" && dest.text !== src.text ) {
+ disableScript( dest ).text = src.text;
+ restoreScript( dest );
+
+ // IE6-10 improperly clones children of object elements using classid.
+ // IE10 throws NoModificationAllowedError if parent is null, #12132.
+ } else if ( nodeName === "object" ) {
+ if ( dest.parentNode ) {
+ dest.outerHTML = src.outerHTML;
+ }
+
+ // This path appears unavoidable for IE9. When cloning an object
+ // element in IE9, the outerHTML strategy above is not sufficient.
+ // If the src has innerHTML and the destination does not,
+ // copy the src.innerHTML into the dest.innerHTML. #10324
+ if ( jQuery.support.html5Clone && ( src.innerHTML && !jQuery.trim(dest.innerHTML) ) ) {
+ dest.innerHTML = src.innerHTML;
+ }
+
+ } else if ( nodeName === "input" && manipulation_rcheckableType.test( src.type ) ) {
+ // IE6-8 fails to persist the checked state of a cloned checkbox
+ // or radio button. Worse, IE6-7 fail to give the cloned element
+ // a checked appearance if the defaultChecked value isn't also set
+
+ dest.defaultChecked = dest.checked = src.checked;
+
+ // IE6-7 get confused and end up setting the value of a cloned
+ // checkbox/radio button to an empty string instead of "on"
+ if ( dest.value !== src.value ) {
+ dest.value = src.value;
+ }
+
+ // IE6-8 fails to return the selected option to the default selected
+ // state when cloning options
+ } else if ( nodeName === "option" ) {
+ dest.defaultSelected = dest.selected = src.defaultSelected;
+
+ // IE6-8 fails to set the defaultValue to the correct value when
+ // cloning other types of input fields
+ } else if ( nodeName === "input" || nodeName === "textarea" ) {
+ dest.defaultValue = src.defaultValue;
+ }
+}
+
+jQuery.each({
+ appendTo: "append",
+ prependTo: "prepend",
+ insertBefore: "before",
+ insertAfter: "after",
+ replaceAll: "replaceWith"
+}, function( name, original ) {
+ jQuery.fn[ name ] = function( selector ) {
+ var elems,
+ i = 0,
+ ret = [],
+ insert = jQuery( selector ),
+ last = insert.length - 1;
+
+ for ( ; i <= last; i++ ) {
+ elems = i === last ? this : this.clone(true);
+ jQuery( insert[i] )[ original ]( elems );
+
+ // Modern browsers can apply jQuery collections as arrays, but oldIE needs a .get()
+ core_push.apply( ret, elems.get() );
+ }
+
+ return this.pushStack( ret );
+ };
+});
+
+function getAll( context, tag ) {
+ var elems, elem,
+ i = 0,
+ found = typeof context.getElementsByTagName !== core_strundefined ? context.getElementsByTagName( tag || "*" ) :
+ typeof context.querySelectorAll !== core_strundefined ? context.querySelectorAll( tag || "*" ) :
+ undefined;
+
+ if ( !found ) {
+ for ( found = [], elems = context.childNodes || context; (elem = elems[i]) != null; i++ ) {
+ if ( !tag || jQuery.nodeName( elem, tag ) ) {
+ found.push( elem );
+ } else {
+ jQuery.merge( found, getAll( elem, tag ) );
+ }
+ }
+ }
+
+ return tag === undefined || tag && jQuery.nodeName( context, tag ) ?
+ jQuery.merge( [ context ], found ) :
+ found;
+}
+
+// Used in buildFragment, fixes the defaultChecked property
+function fixDefaultChecked( elem ) {
+ if ( manipulation_rcheckableType.test( elem.type ) ) {
+ elem.defaultChecked = elem.checked;
+ }
+}
+
+jQuery.extend({
+ clone: function( elem, dataAndEvents, deepDataAndEvents ) {
+ var destElements, node, clone, i, srcElements,
+ inPage = jQuery.contains( elem.ownerDocument, elem );
+
+ if ( jQuery.support.html5Clone || jQuery.isXMLDoc(elem) || !rnoshimcache.test( "<" + elem.nodeName + ">" ) ) {
+ clone = elem.cloneNode( true );
+
+ // IE<=8 does not properly clone detached, unknown element nodes
+ } else {
+ fragmentDiv.innerHTML = elem.outerHTML;
+ fragmentDiv.removeChild( clone = fragmentDiv.firstChild );
+ }
+
+ if ( (!jQuery.support.noCloneEvent || !jQuery.support.noCloneChecked) &&
+ (elem.nodeType === 1 || elem.nodeType === 11) && !jQuery.isXMLDoc(elem) ) {
+
+ // We eschew Sizzle here for performance reasons: http://jsperf.com/getall-vs-sizzle/2
+ destElements = getAll( clone );
+ srcElements = getAll( elem );
+
+ // Fix all IE cloning issues
+ for ( i = 0; (node = srcElements[i]) != null; ++i ) {
+ // Ensure that the destination node is not null; Fixes #9587
+ if ( destElements[i] ) {
+ fixCloneNodeIssues( node, destElements[i] );
+ }
+ }
+ }
+
+ // Copy the events from the original to the clone
+ if ( dataAndEvents ) {
+ if ( deepDataAndEvents ) {
+ srcElements = srcElements || getAll( elem );
+ destElements = destElements || getAll( clone );
+
+ for ( i = 0; (node = srcElements[i]) != null; i++ ) {
+ cloneCopyEvent( node, destElements[i] );
+ }
+ } else {
+ cloneCopyEvent( elem, clone );
+ }
+ }
+
+ // Preserve script evaluation history
+ destElements = getAll( clone, "script" );
+ if ( destElements.length > 0 ) {
+ setGlobalEval( destElements, !inPage && getAll( elem, "script" ) );
+ }
+
+ destElements = srcElements = node = null;
+
+ // Return the cloned set
+ return clone;
+ },
+
+ buildFragment: function( elems, context, scripts, selection ) {
+ var j, elem, contains,
+ tmp, tag, tbody, wrap,
+ l = elems.length,
+
+ // Ensure a safe fragment
+ safe = createSafeFragment( context ),
+
+ nodes = [],
+ i = 0;
+
+ for ( ; i < l; i++ ) {
+ elem = elems[ i ];
+
+ if ( elem || elem === 0 ) {
+
+ // Add nodes directly
+ if ( jQuery.type( elem ) === "object" ) {
+ jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem );
+
+ // Convert non-html into a text node
+ } else if ( !rhtml.test( elem ) ) {
+ nodes.push( context.createTextNode( elem ) );
+
+ // Convert html into DOM nodes
+ } else {
+ tmp = tmp || safe.appendChild( context.createElement("div") );
+
+ // Deserialize a standard representation
+ tag = ( rtagName.exec( elem ) || ["", ""] )[1].toLowerCase();
+ wrap = wrapMap[ tag ] || wrapMap._default;
+
+ tmp.innerHTML = wrap[1] + elem.replace( rxhtmlTag, "<$1></$2>" ) + wrap[2];
+
+ // Descend through wrappers to the right content
+ j = wrap[0];
+ while ( j-- ) {
+ tmp = tmp.lastChild;
+ }
+
+ // Manually add leading whitespace removed by IE
+ if ( !jQuery.support.leadingWhitespace && rleadingWhitespace.test( elem ) ) {
+ nodes.push( context.createTextNode( rleadingWhitespace.exec( elem )[0] ) );
+ }
+
+ // Remove IE's autoinserted <tbody> from table fragments
+ if ( !jQuery.support.tbody ) {
+
+ // String was a <table>, *may* have spurious <tbody>
+ elem = tag === "table" && !rtbody.test( elem ) ?
+ tmp.firstChild :
+
+ // String was a bare <thead> or <tfoot>
+ wrap[1] === "<table>" && !rtbody.test( elem ) ?
+ tmp :
+ 0;
+
+ j = elem && elem.childNodes.length;
+ while ( j-- ) {
+ if ( jQuery.nodeName( (tbody = elem.childNodes[j]), "tbody" ) && !tbody.childNodes.length ) {
+ elem.removeChild( tbody );
+ }
+ }
+ }
+
+ jQuery.merge( nodes, tmp.childNodes );
+
+ // Fix #12392 for WebKit and IE > 9
+ tmp.textContent = "";
+
+ // Fix #12392 for oldIE
+ while ( tmp.firstChild ) {
+ tmp.removeChild( tmp.firstChild );
+ }
+
+ // Remember the top-level container for proper cleanup
+ tmp = safe.lastChild;
+ }
+ }
+ }
+
+ // Fix #11356: Clear elements from fragment
+ if ( tmp ) {
+ safe.removeChild( tmp );
+ }
+
+ // Reset defaultChecked for any radios and checkboxes
+ // about to be appended to the DOM in IE 6/7 (#8060)
+ if ( !jQuery.support.appendChecked ) {
+ jQuery.grep( getAll( nodes, "input" ), fixDefaultChecked );
+ }
+
+ i = 0;
+ while ( (elem = nodes[ i++ ]) ) {
+
+ // #4087 - If origin and destination elements are the same, and this is
+ // that element, do not do anything
+ if ( selection && jQuery.inArray( elem, selection ) !== -1 ) {
+ continue;
+ }
+
+ contains = jQuery.contains( elem.ownerDocument, elem );
+
+ // Append to fragment
+ tmp = getAll( safe.appendChild( elem ), "script" );
+
+ // Preserve script evaluation history
+ if ( contains ) {
+ setGlobalEval( tmp );
+ }
+
+ // Capture executables
+ if ( scripts ) {
+ j = 0;
+ while ( (elem = tmp[ j++ ]) ) {
+ if ( rscriptType.test( elem.type || "" ) ) {
+ scripts.push( elem );
+ }
+ }
+ }
+ }
+
+ tmp = null;
+
+ return safe;
+ },
+
+ cleanData: function( elems, /* internal */ acceptData ) {
+ var elem, type, id, data,
+ i = 0,
+ internalKey = jQuery.expando,
+ cache = jQuery.cache,
+ deleteExpando = jQuery.support.deleteExpando,
+ special = jQuery.event.special;
+
+ for ( ; (elem = elems[i]) != null; i++ ) {
+
+ if ( acceptData || jQuery.acceptData( elem ) ) {
+
+ id = elem[ internalKey ];
+ data = id && cache[ id ];
+
+ if ( data ) {
+ if ( data.events ) {
+ for ( type in data.events ) {
+ if ( special[ type ] ) {
+ jQuery.event.remove( elem, type );
+
+ // This is a shortcut to avoid jQuery.event.remove's overhead
+ } else {
+ jQuery.removeEvent( elem, type, data.handle );
+ }
+ }
+ }
+
+ // Remove cache only if it was not already removed by jQuery.event.remove
+ if ( cache[ id ] ) {
+
+ delete cache[ id ];
+
+ // IE does not allow us to delete expando properties from nodes,
+ // nor does it have a removeAttribute function on Document nodes;
+ // we must handle all of these cases
+ if ( deleteExpando ) {
+ delete elem[ internalKey ];
+
+ } else if ( typeof elem.removeAttribute !== core_strundefined ) {
+ elem.removeAttribute( internalKey );
+
+ } else {
+ elem[ internalKey ] = null;
+ }
+
+ core_deletedIds.push( id );
+ }
+ }
+ }
+ }
+ },
+
+ _evalUrl: function( url ) {
+ return jQuery.ajax({
+ url: url,
+ type: "GET",
+ dataType: "script",
+ async: false,
+ global: false,
+ "throws": true
+ });
+ }
+});
+jQuery.fn.extend({
+ wrapAll: function( html ) {
+ if ( jQuery.isFunction( html ) ) {
+ return this.each(function(i) {
+ jQuery(this).wrapAll( html.call(this, i) );
+ });
+ }
+
+ if ( this[0] ) {
+ // The elements to wrap the target around
+ var wrap = jQuery( html, this[0].ownerDocument ).eq(0).clone(true);
+
+ if ( this[0].parentNode ) {
+ wrap.insertBefore( this[0] );
+ }
+
+ wrap.map(function() {
+ var elem = this;
+
+ while ( elem.firstChild && elem.firstChild.nodeType === 1 ) {
+ elem = elem.firstChild;
+ }
+
+ return elem;
+ }).append( this );
+ }
+
+ return this;
+ },
+
+ wrapInner: function( html ) {
+ if ( jQuery.isFunction( html ) ) {
+ return this.each(function(i) {
+ jQuery(this).wrapInner( html.call(this, i) );
+ });
+ }
+
+ return this.each(function() {
+ var self = jQuery( this ),
+ contents = self.contents();
+
+ if ( contents.length ) {
+ contents.wrapAll( html );
+
+ } else {
+ self.append( html );
+ }
+ });
+ },
+
+ wrap: function( html ) {
+ var isFunction = jQuery.isFunction( html );
+
+ return this.each(function(i) {
+ jQuery( this ).wrapAll( isFunction ? html.call(this, i) : html );
+ });
+ },
+
+ unwrap: function() {
+ return this.parent().each(function() {
+ if ( !jQuery.nodeName( this, "body" ) ) {
+ jQuery( this ).replaceWith( this.childNodes );
+ }
+ }).end();
+ }
+});
+var iframe, getStyles, curCSS,
+ ralpha = /alpha\([^)]*\)/i,
+ ropacity = /opacity\s*=\s*([^)]*)/,
+ rposition = /^(top|right|bottom|left)$/,
+ // swappable if display is none or starts with table except "table", "table-cell", or "table-caption"
+ // see here for display values: https://developer.mozilla.org/en-US/docs/CSS/display
+ rdisplayswap = /^(none|table(?!-c[ea]).+)/,
+ rmargin = /^margin/,
+ rnumsplit = new RegExp( "^(" + core_pnum + ")(.*)$", "i" ),
+ rnumnonpx = new RegExp( "^(" + core_pnum + ")(?!px)[a-z%]+$", "i" ),
+ rrelNum = new RegExp( "^([+-])=(" + core_pnum + ")", "i" ),
+ elemdisplay = { BODY: "block" },
+
+ cssShow = { position: "absolute", visibility: "hidden", display: "block" },
+ cssNormalTransform = {
+ letterSpacing: 0,
+ fontWeight: 400
+ },
+
+ cssExpand = [ "Top", "Right", "Bottom", "Left" ],
+ cssPrefixes = [ "Webkit", "O", "Moz", "ms" ];
+
+// return a css property mapped to a potentially vendor prefixed property
+function vendorPropName( style, name ) {
+
+ // shortcut for names that are not vendor prefixed
+ if ( name in style ) {
+ return name;
+ }
+
+ // check for vendor prefixed names
+ var capName = name.charAt(0).toUpperCase() + name.slice(1),
+ origName = name,
+ i = cssPrefixes.length;
+
+ while ( i-- ) {
+ name = cssPrefixes[ i ] + capName;
+ if ( name in style ) {
+ return name;
+ }
+ }
+
+ return origName;
+}
+
+function isHidden( elem, el ) {
+ // isHidden might be called from jQuery#filter function;
+ // in that case, element will be second argument
+ elem = el || elem;
+ return jQuery.css( elem, "display" ) === "none" || !jQuery.contains( elem.ownerDocument, elem );
+}
+
+function showHide( elements, show ) {
+ var display, elem, hidden,
+ values = [],
+ index = 0,
+ length = elements.length;
+
+ for ( ; index < length; index++ ) {
+ elem = elements[ index ];
+ if ( !elem.style ) {
+ continue;
+ }
+
+ values[ index ] = jQuery._data( elem, "olddisplay" );
+ display = elem.style.display;
+ if ( show ) {
+ // Reset the inline display of this element to learn if it is
+ // being hidden by cascaded rules or not
+ if ( !values[ index ] && display === "none" ) {
+ elem.style.display = "";
+ }
+
+ // Set elements which have been overridden with display: none
+ // in a stylesheet to whatever the default browser style is
+ // for such an element
+ if ( elem.style.display === "" && isHidden( elem ) ) {
+ values[ index ] = jQuery._data( elem, "olddisplay", css_defaultDisplay(elem.nodeName) );
+ }
+ } else {
+
+ if ( !values[ index ] ) {
+ hidden = isHidden( elem );
+
+ if ( display && display !== "none" || !hidden ) {
+ jQuery._data( elem, "olddisplay", hidden ? display : jQuery.css( elem, "display" ) );
+ }
+ }
+ }
+ }
+
+ // Set the display of most of the elements in a second loop
+ // to avoid the constant reflow
+ for ( index = 0; index < length; index++ ) {
+ elem = elements[ index ];
+ if ( !elem.style ) {
+ continue;
+ }
+ if ( !show || elem.style.display === "none" || elem.style.display === "" ) {
+ elem.style.display = show ? values[ index ] || "" : "none";
+ }
+ }
+
+ return elements;
+}
+
+jQuery.fn.extend({
+ css: function( name, value ) {
+ return jQuery.access( this, function( elem, name, value ) {
+ var len, styles,
+ map = {},
+ i = 0;
+
+ if ( jQuery.isArray( name ) ) {
+ styles = getStyles( elem );
+ len = name.length;
+
+ for ( ; i < len; i++ ) {
+ map[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles );
+ }
+
+ return map;
+ }
+
+ return value !== undefined ?
+ jQuery.style( elem, name, value ) :
+ jQuery.css( elem, name );
+ }, name, value, arguments.length > 1 );
+ },
+ show: function() {
+ return showHide( this, true );
+ },
+ hide: function() {
+ return showHide( this );
+ },
+ toggle: function( state ) {
+ if ( typeof state === "boolean" ) {
+ return state ? this.show() : this.hide();
+ }
+
+ return this.each(function() {
+ if ( isHidden( this ) ) {
+ jQuery( this ).show();
+ } else {
+ jQuery( this ).hide();
+ }
+ });
+ }
+});
+
+jQuery.extend({
+ // Add in style property hooks for overriding the default
+ // behavior of getting and setting a style property
+ cssHooks: {
+ opacity: {
+ get: function( elem, computed ) {
+ if ( computed ) {
+ // We should always get a number back from opacity
+ var ret = curCSS( elem, "opacity" );
+ return ret === "" ? "1" : ret;
+ }
+ }
+ }
+ },
+
+ // Don't automatically add "px" to these possibly-unitless properties
+ cssNumber: {
+ "columnCount": true,
+ "fillOpacity": true,
+ "fontWeight": true,
+ "lineHeight": true,
+ "opacity": true,
+ "order": true,
+ "orphans": true,
+ "widows": true,
+ "zIndex": true,
+ "zoom": true
+ },
+
+ // Add in properties whose names you wish to fix before
+ // setting or getting the value
+ cssProps: {
+ // normalize float css property
+ "float": jQuery.support.cssFloat ? "cssFloat" : "styleFloat"
+ },
+
+ // Get and set the style property on a DOM Node
+ style: function( elem, name, value, extra ) {
+ // Don't set styles on text and comment nodes
+ if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) {
+ return;
+ }
+
+ // Make sure that we're working with the right name
+ var ret, type, hooks,
+ origName = jQuery.camelCase( name ),
+ style = elem.style;
+
+ name = jQuery.cssProps[ origName ] || ( jQuery.cssProps[ origName ] = vendorPropName( style, origName ) );
+
+ // gets hook for the prefixed version
+ // followed by the unprefixed version
+ hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
+
+ // Check if we're setting a value
+ if ( value !== undefined ) {
+ type = typeof value;
+
+ // convert relative number strings (+= or -=) to relative numbers. #7345
+ if ( type === "string" && (ret = rrelNum.exec( value )) ) {
+ value = ( ret[1] + 1 ) * ret[2] + parseFloat( jQuery.css( elem, name ) );
+ // Fixes bug #9237
+ type = "number";
+ }
+
+ // Make sure that NaN and null values aren't set. See: #7116
+ if ( value == null || type === "number" && isNaN( value ) ) {
+ return;
+ }
+
+ // If a number was passed in, add 'px' to the (except for certain CSS properties)
+ if ( type === "number" && !jQuery.cssNumber[ origName ] ) {
+ value += "px";
+ }
+
+ // Fixes #8908, it can be done more correctly by specifing setters in cssHooks,
+ // but it would mean to define eight (for every problematic property) identical functions
+ if ( !jQuery.support.clearCloneStyle && value === "" && name.indexOf("background") === 0 ) {
+ style[ name ] = "inherit";
+ }
+
+ // If a hook was provided, use that value, otherwise just set the specified value
+ if ( !hooks || !("set" in hooks) || (value = hooks.set( elem, value, extra )) !== undefined ) {
+
+ // Wrapped to prevent IE from throwing errors when 'invalid' values are provided
+ // Fixes bug #5509
+ try {
+ style[ name ] = value;
+ } catch(e) {}
+ }
+
+ } else {
+ // If a hook was provided get the non-computed value from there
+ if ( hooks && "get" in hooks && (ret = hooks.get( elem, false, extra )) !== undefined ) {
+ return ret;
+ }
+
+ // Otherwise just get the value from the style object
+ return style[ name ];
+ }
+ },
+
+ css: function( elem, name, extra, styles ) {
+ var num, val, hooks,
+ origName = jQuery.camelCase( name );
+
+ // Make sure that we're working with the right name
+ name = jQuery.cssProps[ origName ] || ( jQuery.cssProps[ origName ] = vendorPropName( elem.style, origName ) );
+
+ // gets hook for the prefixed version
+ // followed by the unprefixed version
+ hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
+
+ // If a hook was provided get the computed value from there
+ if ( hooks && "get" in hooks ) {
+ val = hooks.get( elem, true, extra );
+ }
+
+ // Otherwise, if a way to get the computed value exists, use that
+ if ( val === undefined ) {
+ val = curCSS( elem, name, styles );
+ }
+
+ //convert "normal" to computed value
+ if ( val === "normal" && name in cssNormalTransform ) {
+ val = cssNormalTransform[ name ];
+ }
+
+ // Return, converting to number if forced or a qualifier was provided and val looks numeric
+ if ( extra === "" || extra ) {
+ num = parseFloat( val );
+ return extra === true || jQuery.isNumeric( num ) ? num || 0 : val;
+ }
+ return val;
+ }
+});
+
+// NOTE: we've included the "window" in window.getComputedStyle
+// because jsdom on node.js will break without it.
+if ( window.getComputedStyle ) {
+ getStyles = function( elem ) {
+ return window.getComputedStyle( elem, null );
+ };
+
+ curCSS = function( elem, name, _computed ) {
+ var width, minWidth, maxWidth,
+ computed = _computed || getStyles( elem ),
+
+ // getPropertyValue is only needed for .css('filter') in IE9, see #12537
+ ret = computed ? computed.getPropertyValue( name ) || computed[ name ] : undefined,
+ style = elem.style;
+
+ if ( computed ) {
+
+ if ( ret === "" && !jQuery.contains( elem.ownerDocument, elem ) ) {
+ ret = jQuery.style( elem, name );
+ }
+
+ // A tribute to the "awesome hack by Dean Edwards"
+ // Chrome < 17 and Safari 5.0 uses "computed value" instead of "used value" for margin-right
+ // Safari 5.1.7 (at least) returns percentage for a larger set of values, but width seems to be reliably pixels
+ // this is against the CSSOM draft spec: http://dev.w3.org/csswg/cssom/#resolved-values
+ if ( rnumnonpx.test( ret ) && rmargin.test( name ) ) {
+
+ // Remember the original values
+ width = style.width;
+ minWidth = style.minWidth;
+ maxWidth = style.maxWidth;
+
+ // Put in the new values to get a computed value out
+ style.minWidth = style.maxWidth = style.width = ret;
+ ret = computed.width;
+
+ // Revert the changed values
+ style.width = width;
+ style.minWidth = minWidth;
+ style.maxWidth = maxWidth;
+ }
+ }
+
+ return ret;
+ };
+} else if ( document.documentElement.currentStyle ) {
+ getStyles = function( elem ) {
+ return elem.currentStyle;
+ };
+
+ curCSS = function( elem, name, _computed ) {
+ var left, rs, rsLeft,
+ computed = _computed || getStyles( elem ),
+ ret = computed ? computed[ name ] : undefined,
+ style = elem.style;
+
+ // Avoid setting ret to empty string here
+ // so we don't default to auto
+ if ( ret == null && style && style[ name ] ) {
+ ret = style[ name ];
+ }
+
+ // From the awesome hack by Dean Edwards
+ // http://erik.eae.net/archives/2007/07/27/18.54.15/#comment-102291
+
+ // If we're not dealing with a regular pixel number
+ // but a number that has a weird ending, we need to convert it to pixels
+ // but not position css attributes, as those are proportional to the parent element instead
+ // and we can't measure the parent instead because it might trigger a "stacking dolls" problem
+ if ( rnumnonpx.test( ret ) && !rposition.test( name ) ) {
+
+ // Remember the original values
+ left = style.left;
+ rs = elem.runtimeStyle;
+ rsLeft = rs && rs.left;
+
+ // Put in the new values to get a computed value out
+ if ( rsLeft ) {
+ rs.left = elem.currentStyle.left;
+ }
+ style.left = name === "fontSize" ? "1em" : ret;
+ ret = style.pixelLeft + "px";
+
+ // Revert the changed values
+ style.left = left;
+ if ( rsLeft ) {
+ rs.left = rsLeft;
+ }
+ }
+
+ return ret === "" ? "auto" : ret;
+ };
+}
+
+function setPositiveNumber( elem, value, subtract ) {
+ var matches = rnumsplit.exec( value );
+ return matches ?
+ // Guard against undefined "subtract", e.g., when used as in cssHooks
+ Math.max( 0, matches[ 1 ] - ( subtract || 0 ) ) + ( matches[ 2 ] || "px" ) :
+ value;
+}
+
+function augmentWidthOrHeight( elem, name, extra, isBorderBox, styles ) {
+ var i = extra === ( isBorderBox ? "border" : "content" ) ?
+ // If we already have the right measurement, avoid augmentation
+ 4 :
+ // Otherwise initialize for horizontal or vertical properties
+ name === "width" ? 1 : 0,
+
+ val = 0;
+
+ for ( ; i < 4; i += 2 ) {
+ // both box models exclude margin, so add it if we want it
+ if ( extra === "margin" ) {
+ val += jQuery.css( elem, extra + cssExpand[ i ], true, styles );
+ }
+
+ if ( isBorderBox ) {
+ // border-box includes padding, so remove it if we want content
+ if ( extra === "content" ) {
+ val -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
+ }
+
+ // at this point, extra isn't border nor margin, so remove border
+ if ( extra !== "margin" ) {
+ val -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
+ }
+ } else {
+ // at this point, extra isn't content, so add padding
+ val += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
+
+ // at this point, extra isn't content nor padding, so add border
+ if ( extra !== "padding" ) {
+ val += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
+ }
+ }
+ }
+
+ return val;
+}
+
+function getWidthOrHeight( elem, name, extra ) {
+
+ // Start with offset property, which is equivalent to the border-box value
+ var valueIsBorderBox = true,
+ val = name === "width" ? elem.offsetWidth : elem.offsetHeight,
+ styles = getStyles( elem ),
+ isBorderBox = jQuery.support.boxSizing && jQuery.css( elem, "boxSizing", false, styles ) === "border-box";
+
+ // some non-html elements return undefined for offsetWidth, so check for null/undefined
+ // svg - https://bugzilla.mozilla.org/show_bug.cgi?id=649285
+ // MathML - https://bugzilla.mozilla.org/show_bug.cgi?id=491668
+ if ( val <= 0 || val == null ) {
+ // Fall back to computed then uncomputed css if necessary
+ val = curCSS( elem, name, styles );
+ if ( val < 0 || val == null ) {
+ val = elem.style[ name ];
+ }
+
+ // Computed unit is not pixels. Stop here and return.
+ if ( rnumnonpx.test(val) ) {
+ return val;
+ }
+
+ // we need the check for style in case a browser which returns unreliable values
+ // for getComputedStyle silently falls back to the reliable elem.style
+ valueIsBorderBox = isBorderBox && ( jQuery.support.boxSizingReliable || val === elem.style[ name ] );
+
+ // Normalize "", auto, and prepare for extra
+ val = parseFloat( val ) || 0;
+ }
+
+ // use the active box-sizing model to add/subtract irrelevant styles
+ return ( val +
+ augmentWidthOrHeight(
+ elem,
+ name,
+ extra || ( isBorderBox ? "border" : "content" ),
+ valueIsBorderBox,
+ styles
+ )
+ ) + "px";
+}
+
+// Try to determine the default display value of an element
+function css_defaultDisplay( nodeName ) {
+ var doc = document,
+ display = elemdisplay[ nodeName ];
+
+ if ( !display ) {
+ display = actualDisplay( nodeName, doc );
+
+ // If the simple way fails, read from inside an iframe
+ if ( display === "none" || !display ) {
+ // Use the already-created iframe if possible
+ iframe = ( iframe ||
+ jQuery("<iframe frameborder='0' width='0' height='0'/>")
+ .css( "cssText", "display:block !important" )
+ ).appendTo( doc.documentElement );
+
+ // Always write a new HTML skeleton so Webkit and Firefox don't choke on reuse
+ doc = ( iframe[0].contentWindow || iframe[0].contentDocument ).document;
+ doc.write("<!doctype html><html><body>");
+ doc.close();
+
+ display = actualDisplay( nodeName, doc );
+ iframe.detach();
+ }
+
+ // Store the correct default display
+ elemdisplay[ nodeName ] = display;
+ }
+
+ return display;
+}
+
+// Called ONLY from within css_defaultDisplay
+function actualDisplay( name, doc ) {
+ var elem = jQuery( doc.createElement( name ) ).appendTo( doc.body ),
+ display = jQuery.css( elem[0], "display" );
+ elem.remove();
+ return display;
+}
+
+jQuery.each([ "height", "width" ], function( i, name ) {
+ jQuery.cssHooks[ name ] = {
+ get: function( elem, computed, extra ) {
+ if ( computed ) {
+ // certain elements can have dimension info if we invisibly show them
+ // however, it must have a current display style that would benefit from this
+ return elem.offsetWidth === 0 && rdisplayswap.test( jQuery.css( elem, "display" ) ) ?
+ jQuery.swap( elem, cssShow, function() {
+ return getWidthOrHeight( elem, name, extra );
+ }) :
+ getWidthOrHeight( elem, name, extra );
+ }
+ },
+
+ set: function( elem, value, extra ) {
+ var styles = extra && getStyles( elem );
+ return setPositiveNumber( elem, value, extra ?
+ augmentWidthOrHeight(
+ elem,
+ name,
+ extra,
+ jQuery.support.boxSizing && jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
+ styles
+ ) : 0
+ );
+ }
+ };
+});
+
+if ( !jQuery.support.opacity ) {
+ jQuery.cssHooks.opacity = {
+ get: function( elem, computed ) {
+ // IE uses filters for opacity
+ return ropacity.test( (computed && elem.currentStyle ? elem.currentStyle.filter : elem.style.filter) || "" ) ?
+ ( 0.01 * parseFloat( RegExp.$1 ) ) + "" :
+ computed ? "1" : "";
+ },
+
+ set: function( elem, value ) {
+ var style = elem.style,
+ currentStyle = elem.currentStyle,
+ opacity = jQuery.isNumeric( value ) ? "alpha(opacity=" + value * 100 + ")" : "",
+ filter = currentStyle && currentStyle.filter || style.filter || "";
+
+ // IE has trouble with opacity if it does not have layout
+ // Force it by setting the zoom level
+ style.zoom = 1;
+
+ // if setting opacity to 1, and no other filters exist - attempt to remove filter attribute #6652
+ // if value === "", then remove inline opacity #12685
+ if ( ( value >= 1 || value === "" ) &&
+ jQuery.trim( filter.replace( ralpha, "" ) ) === "" &&
+ style.removeAttribute ) {
+
+ // Setting style.filter to null, "" & " " still leave "filter:" in the cssText
+ // if "filter:" is present at all, clearType is disabled, we want to avoid this
+ // style.removeAttribute is IE Only, but so apparently is this code path...
+ style.removeAttribute( "filter" );
+
+ // if there is no filter style applied in a css rule or unset inline opacity, we are done
+ if ( value === "" || currentStyle && !currentStyle.filter ) {
+ return;
+ }
+ }
+
+ // otherwise, set new filter values
+ style.filter = ralpha.test( filter ) ?
+ filter.replace( ralpha, opacity ) :
+ filter + " " + opacity;
+ }
+ };
+}
+
+// These hooks cannot be added until DOM ready because the support test
+// for it is not run until after DOM ready
+jQuery(function() {
+ if ( !jQuery.support.reliableMarginRight ) {
+ jQuery.cssHooks.marginRight = {
+ get: function( elem, computed ) {
+ if ( computed ) {
+ // WebKit Bug 13343 - getComputedStyle returns wrong value for margin-right
+ // Work around by temporarily setting element display to inline-block
+ return jQuery.swap( elem, { "display": "inline-block" },
+ curCSS, [ elem, "marginRight" ] );
+ }
+ }
+ };
+ }
+
+ // Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084
+ // getComputedStyle returns percent when specified for top/left/bottom/right
+ // rather than make the css module depend on the offset module, we just check for it here
+ if ( !jQuery.support.pixelPosition && jQuery.fn.position ) {
+ jQuery.each( [ "top", "left" ], function( i, prop ) {
+ jQuery.cssHooks[ prop ] = {
+ get: function( elem, computed ) {
+ if ( computed ) {
+ computed = curCSS( elem, prop );
+ // if curCSS returns percentage, fallback to offset
+ return rnumnonpx.test( computed ) ?
+ jQuery( elem ).position()[ prop ] + "px" :
+ computed;
+ }
+ }
+ };
+ });
+ }
+
+});
+
+if ( jQuery.expr && jQuery.expr.filters ) {
+ jQuery.expr.filters.hidden = function( elem ) {
+ // Support: Opera <= 12.12
+ // Opera reports offsetWidths and offsetHeights less than zero on some elements
+ return elem.offsetWidth <= 0 && elem.offsetHeight <= 0 ||
+ (!jQuery.support.reliableHiddenOffsets && ((elem.style && elem.style.display) || jQuery.css( elem, "display" )) === "none");
+ };
+
+ jQuery.expr.filters.visible = function( elem ) {
+ return !jQuery.expr.filters.hidden( elem );
+ };
+}
+
+// These hooks are used by animate to expand properties
+jQuery.each({
+ margin: "",
+ padding: "",
+ border: "Width"
+}, function( prefix, suffix ) {
+ jQuery.cssHooks[ prefix + suffix ] = {
+ expand: function( value ) {
+ var i = 0,
+ expanded = {},
+
+ // assumes a single number if not a string
+ parts = typeof value === "string" ? value.split(" ") : [ value ];
+
+ for ( ; i < 4; i++ ) {
+ expanded[ prefix + cssExpand[ i ] + suffix ] =
+ parts[ i ] || parts[ i - 2 ] || parts[ 0 ];
+ }
+
+ return expanded;
+ }
+ };
+
+ if ( !rmargin.test( prefix ) ) {
+ jQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber;
+ }
+});
+var r20 = /%20/g,
+ rbracket = /\[\]$/,
+ rCRLF = /\r?\n/g,
+ rsubmitterTypes = /^(?:submit|button|image|reset|file)$/i,
+ rsubmittable = /^(?:input|select|textarea|keygen)/i;
+
+jQuery.fn.extend({
+ serialize: function() {
+ return jQuery.param( this.serializeArray() );
+ },
+ serializeArray: function() {
+ return this.map(function(){
+ // Can add propHook for "elements" to filter or add form elements
+ var elements = jQuery.prop( this, "elements" );
+ return elements ? jQuery.makeArray( elements ) : this;
+ })
+ .filter(function(){
+ var type = this.type;
+ // Use .is(":disabled") so that fieldset[disabled] works
+ return this.name && !jQuery( this ).is( ":disabled" ) &&
+ rsubmittable.test( this.nodeName ) && !rsubmitterTypes.test( type ) &&
+ ( this.checked || !manipulation_rcheckableType.test( type ) );
+ })
+ .map(function( i, elem ){
+ var val = jQuery( this ).val();
+
+ return val == null ?
+ null :
+ jQuery.isArray( val ) ?
+ jQuery.map( val, function( val ){
+ return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
+ }) :
+ { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
+ }).get();
+ }
+});
+
+//Serialize an array of form elements or a set of
+//key/values into a query string
+jQuery.param = function( a, traditional ) {
+ var prefix,
+ s = [],
+ add = function( key, value ) {
+ // If value is a function, invoke it and return its value
+ value = jQuery.isFunction( value ) ? value() : ( value == null ? "" : value );
+ s[ s.length ] = encodeURIComponent( key ) + "=" + encodeURIComponent( value );
+ };
+
+ // Set traditional to true for jQuery <= 1.3.2 behavior.
+ if ( traditional === undefined ) {
+ traditional = jQuery.ajaxSettings && jQuery.ajaxSettings.traditional;
+ }
+
+ // If an array was passed in, assume that it is an array of form elements.
+ if ( jQuery.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) {
+ // Serialize the form elements
+ jQuery.each( a, function() {
+ add( this.name, this.value );
+ });
+
+ } else {
+ // If traditional, encode the "old" way (the way 1.3.2 or older
+ // did it), otherwise encode params recursively.
+ for ( prefix in a ) {
+ buildParams( prefix, a[ prefix ], traditional, add );
+ }
+ }
+
+ // Return the resulting serialization
+ return s.join( "&" ).replace( r20, "+" );
+};
+
+function buildParams( prefix, obj, traditional, add ) {
+ var name;
+
+ if ( jQuery.isArray( obj ) ) {
+ // Serialize array item.
+ jQuery.each( obj, function( i, v ) {
+ if ( traditional || rbracket.test( prefix ) ) {
+ // Treat each array item as a scalar.
+ add( prefix, v );
+
+ } else {
+ // Item is non-scalar (array or object), encode its numeric index.
+ buildParams( prefix + "[" + ( typeof v === "object" ? i : "" ) + "]", v, traditional, add );
+ }
+ });
+
+ } else if ( !traditional && jQuery.type( obj ) === "object" ) {
+ // Serialize object item.
+ for ( name in obj ) {
+ buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add );
+ }
+
+ } else {
+ // Serialize scalar item.
+ add( prefix, obj );
+ }
+}
+jQuery.each( ("blur focus focusin focusout load resize scroll unload click dblclick " +
+ "mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +
+ "change select submit keydown keypress keyup error contextmenu").split(" "), function( i, name ) {
+
+ // Handle event binding
+ jQuery.fn[ name ] = function( data, fn ) {
+ return arguments.length > 0 ?
+ this.on( name, null, data, fn ) :
+ this.trigger( name );
+ };
+});
+
+jQuery.fn.extend({
+ hover: function( fnOver, fnOut ) {
+ return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver );
+ },
+
+ bind: function( types, data, fn ) {
+ return this.on( types, null, data, fn );
+ },
+ unbind: function( types, fn ) {
+ return this.off( types, null, fn );
+ },
+
+ delegate: function( selector, types, data, fn ) {
+ return this.on( types, selector, data, fn );
+ },
+ undelegate: function( selector, types, fn ) {
+ // ( namespace ) or ( selector, types [, fn] )
+ return arguments.length === 1 ? this.off( selector, "**" ) : this.off( types, selector || "**", fn );
+ }
+});
+var
+ // Document location
+ ajaxLocParts,
+ ajaxLocation,
+ ajax_nonce = jQuery.now(),
+
+ ajax_rquery = /\?/,
+ rhash = /#.*$/,
+ rts = /([?&])_=[^&]*/,
+ rheaders = /^(.*?):[ \t]*([^\r\n]*)\r?$/mg, // IE leaves an \r character at EOL
+ // #7653, #8125, #8152: local protocol detection
+ rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/,
+ rnoContent = /^(?:GET|HEAD)$/,
+ rprotocol = /^\/\//,
+ rurl = /^([\w.+-]+:)(?:\/\/([^\/?#:]*)(?::(\d+)|)|)/,
+
+ // Keep a copy of the old load method
+ _load = jQuery.fn.load,
+
+ /* Prefilters
+ * 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example)
+ * 2) These are called:
+ * - BEFORE asking for a transport
+ * - AFTER param serialization (s.data is a string if s.processData is true)
+ * 3) key is the dataType
+ * 4) the catchall symbol "*" can be used
+ * 5) execution will start with transport dataType and THEN continue down to "*" if needed
+ */
+ prefilters = {},
+
+ /* Transports bindings
+ * 1) key is the dataType
+ * 2) the catchall symbol "*" can be used
+ * 3) selection will start with transport dataType and THEN go to "*" if needed
+ */
+ transports = {},
+
+ // Avoid comment-prolog char sequence (#10098); must appease lint and evade compression
+ allTypes = "*/".concat("*");
+
+// #8138, IE may throw an exception when accessing
+// a field from window.location if document.domain has been set
+try {
+ ajaxLocation = location.href;
+} catch( e ) {
+ // Use the href attribute of an A element
+ // since IE will modify it given document.location
+ ajaxLocation = document.createElement( "a" );
+ ajaxLocation.href = "";
+ ajaxLocation = ajaxLocation.href;
+}
+
+// Segment location into parts
+ajaxLocParts = rurl.exec( ajaxLocation.toLowerCase() ) || [];
+
+// Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport
+function addToPrefiltersOrTransports( structure ) {
+
+ // dataTypeExpression is optional and defaults to "*"
+ return function( dataTypeExpression, func ) {
+
+ if ( typeof dataTypeExpression !== "string" ) {
+ func = dataTypeExpression;
+ dataTypeExpression = "*";
+ }
+
+ var dataType,
+ i = 0,
+ dataTypes = dataTypeExpression.toLowerCase().match( core_rnotwhite ) || [];
+
+ if ( jQuery.isFunction( func ) ) {
+ // For each dataType in the dataTypeExpression
+ while ( (dataType = dataTypes[i++]) ) {
+ // Prepend if requested
+ if ( dataType[0] === "+" ) {
+ dataType = dataType.slice( 1 ) || "*";
+ (structure[ dataType ] = structure[ dataType ] || []).unshift( func );
+
+ // Otherwise append
+ } else {
+ (structure[ dataType ] = structure[ dataType ] || []).push( func );
+ }
+ }
+ }
+ };
+}
+
+// Base inspection function for prefilters and transports
+function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR ) {
+
+ var inspected = {},
+ seekingTransport = ( structure === transports );
+
+ function inspect( dataType ) {
+ var selected;
+ inspected[ dataType ] = true;
+ jQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) {
+ var dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR );
+ if( typeof dataTypeOrTransport === "string" && !seekingTransport && !inspected[ dataTypeOrTransport ] ) {
+ options.dataTypes.unshift( dataTypeOrTransport );
+ inspect( dataTypeOrTransport );
+ return false;
+ } else if ( seekingTransport ) {
+ return !( selected = dataTypeOrTransport );
+ }
+ });
+ return selected;
+ }
+
+ return inspect( options.dataTypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" );
+}
+
+// A special extend for ajax options
+// that takes "flat" options (not to be deep extended)
+// Fixes #9887
+function ajaxExtend( target, src ) {
+ var deep, key,
+ flatOptions = jQuery.ajaxSettings.flatOptions || {};
+
+ for ( key in src ) {
+ if ( src[ key ] !== undefined ) {
+ ( flatOptions[ key ] ? target : ( deep || (deep = {}) ) )[ key ] = src[ key ];
+ }
+ }
+ if ( deep ) {
+ jQuery.extend( true, target, deep );
+ }
+
+ return target;
+}
+
+jQuery.fn.load = function( url, params, callback ) {
+ if ( typeof url !== "string" && _load ) {
+ return _load.apply( this, arguments );
+ }
+
+ var selector, response, type,
+ self = this,
+ off = url.indexOf(" ");
+
+ if ( off >= 0 ) {
+ selector = url.slice( off, url.length );
+ url = url.slice( 0, off );
+ }
+
+ // If it's a function
+ if ( jQuery.isFunction( params ) ) {
+
+ // We assume that it's the callback
+ callback = params;
+ params = undefined;
+
+ // Otherwise, build a param string
+ } else if ( params && typeof params === "object" ) {
+ type = "POST";
+ }
+
+ // If we have elements to modify, make the request
+ if ( self.length > 0 ) {
+ jQuery.ajax({
+ url: url,
+
+ // if "type" variable is undefined, then "GET" method will be used
+ type: type,
+ dataType: "html",
+ data: params
+ }).done(function( responseText ) {
+
+ // Save response for use in complete callback
+ response = arguments;
+
+ self.html( selector ?
+
+ // If a selector was specified, locate the right elements in a dummy div
+ // Exclude scripts to avoid IE 'Permission Denied' errors
+ jQuery("<div>").append( jQuery.parseHTML( responseText ) ).find( selector ) :
+
+ // Otherwise use the full result
+ responseText );
+
+ }).complete( callback && function( jqXHR, status ) {
+ self.each( callback, response || [ jqXHR.responseText, status, jqXHR ] );
+ });
+ }
+
+ return this;
+};
+
+// Attach a bunch of functions for handling common AJAX events
+jQuery.each( [ "ajaxStart", "ajaxStop", "ajaxComplete", "ajaxError", "ajaxSuccess", "ajaxSend" ], function( i, type ){
+ jQuery.fn[ type ] = function( fn ){
+ return this.on( type, fn );
+ };
+});
+
+jQuery.extend({
+
+ // Counter for holding the number of active queries
+ active: 0,
+
+ // Last-Modified header cache for next request
+ lastModified: {},
+ etag: {},
+
+ ajaxSettings: {
+ url: ajaxLocation,
+ type: "GET",
+ isLocal: rlocalProtocol.test( ajaxLocParts[ 1 ] ),
+ global: true,
+ processData: true,
+ async: true,
+ contentType: "application/x-www-form-urlencoded; charset=UTF-8",
+ /*
+ timeout: 0,
+ data: null,
+ dataType: null,
+ username: null,
+ password: null,
+ cache: null,
+ throws: false,
+ traditional: false,
+ headers: {},
+ */
+
+ accepts: {
+ "*": allTypes,
+ text: "text/plain",
+ html: "text/html",
+ xml: "application/xml, text/xml",
+ json: "application/json, text/javascript"
+ },
+
+ contents: {
+ xml: /xml/,
+ html: /html/,
+ json: /json/
+ },
+
+ responseFields: {
+ xml: "responseXML",
+ text: "responseText",
+ json: "responseJSON"
+ },
+
+ // Data converters
+ // Keys separate source (or catchall "*") and destination types with a single space
+ converters: {
+
+ // Convert anything to text
+ "* text": String,
+
+ // Text to html (true = no transformation)
+ "text html": true,
+
+ // Evaluate text as a json expression
+ "text json": jQuery.parseJSON,
+
+ // Parse text as xml
+ "text xml": jQuery.parseXML
+ },
+
+ // For options that shouldn't be deep extended:
+ // you can add your own custom options here if
+ // and when you create one that shouldn't be
+ // deep extended (see ajaxExtend)
+ flatOptions: {
+ url: true,
+ context: true
+ }
+ },
+
+ // Creates a full fledged settings object into target
+ // with both ajaxSettings and settings fields.
+ // If target is omitted, writes into ajaxSettings.
+ ajaxSetup: function( target, settings ) {
+ return settings ?
+
+ // Building a settings object
+ ajaxExtend( ajaxExtend( target, jQuery.ajaxSettings ), settings ) :
+
+ // Extending ajaxSettings
+ ajaxExtend( jQuery.ajaxSettings, target );
+ },
+
+ ajaxPrefilter: addToPrefiltersOrTransports( prefilters ),
+ ajaxTransport: addToPrefiltersOrTransports( transports ),
+
+ // Main method
+ ajax: function( url, options ) {
+
+ // If url is an object, simulate pre-1.5 signature
+ if ( typeof url === "object" ) {
+ options = url;
+ url = undefined;
+ }
+
+ // Force options to be an object
+ options = options || {};
+
+ var // Cross-domain detection vars
+ parts,
+ // Loop variable
+ i,
+ // URL without anti-cache param
+ cacheURL,
+ // Response headers as string
+ responseHeadersString,
+ // timeout handle
+ timeoutTimer,
+
+ // To know if global events are to be dispatched
+ fireGlobals,
+
+ transport,
+ // Response headers
+ responseHeaders,
+ // Create the final options object
+ s = jQuery.ajaxSetup( {}, options ),
+ // Callbacks context
+ callbackContext = s.context || s,
+ // Context for global events is callbackContext if it is a DOM node or jQuery collection
+ globalEventContext = s.context && ( callbackContext.nodeType || callbackContext.jquery ) ?
+ jQuery( callbackContext ) :
+ jQuery.event,
+ // Deferreds
+ deferred = jQuery.Deferred(),
+ completeDeferred = jQuery.Callbacks("once memory"),
+ // Status-dependent callbacks
+ statusCode = s.statusCode || {},
+ // Headers (they are sent all at once)
+ requestHeaders = {},
+ requestHeadersNames = {},
+ // The jqXHR state
+ state = 0,
+ // Default abort message
+ strAbort = "canceled",
+ // Fake xhr
+ jqXHR = {
+ readyState: 0,
+
+ // Builds headers hashtable if needed
+ getResponseHeader: function( key ) {
+ var match;
+ if ( state === 2 ) {
+ if ( !responseHeaders ) {
+ responseHeaders = {};
+ while ( (match = rheaders.exec( responseHeadersString )) ) {
+ responseHeaders[ match[1].toLowerCase() ] = match[ 2 ];
+ }
+ }
+ match = responseHeaders[ key.toLowerCase() ];
+ }
+ return match == null ? null : match;
+ },
+
+ // Raw string
+ getAllResponseHeaders: function() {
+ return state === 2 ? responseHeadersString : null;
+ },
+
+ // Caches the header
+ setRequestHeader: function( name, value ) {
+ var lname = name.toLowerCase();
+ if ( !state ) {
+ name = requestHeadersNames[ lname ] = requestHeadersNames[ lname ] || name;
+ requestHeaders[ name ] = value;
+ }
+ return this;
+ },
+
+ // Overrides response content-type header
+ overrideMimeType: function( type ) {
+ if ( !state ) {
+ s.mimeType = type;
+ }
+ return this;
+ },
+
+ // Status-dependent callbacks
+ statusCode: function( map ) {
+ var code;
+ if ( map ) {
+ if ( state < 2 ) {
+ for ( code in map ) {
+ // Lazy-add the new callback in a way that preserves old ones
+ statusCode[ code ] = [ statusCode[ code ], map[ code ] ];
+ }
+ } else {
+ // Execute the appropriate callbacks
+ jqXHR.always( map[ jqXHR.status ] );
+ }
+ }
+ return this;
+ },
+
+ // Cancel the request
+ abort: function( statusText ) {
+ var finalText = statusText || strAbort;
+ if ( transport ) {
+ transport.abort( finalText );
+ }
+ done( 0, finalText );
+ return this;
+ }
+ };
+
+ // Attach deferreds
+ deferred.promise( jqXHR ).complete = completeDeferred.add;
+ jqXHR.success = jqXHR.done;
+ jqXHR.error = jqXHR.fail;
+
+ // Remove hash character (#7531: and string promotion)
+ // Add protocol if not provided (#5866: IE7 issue with protocol-less urls)
+ // Handle falsy url in the settings object (#10093: consistency with old signature)
+ // We also use the url parameter if available
+ s.url = ( ( url || s.url || ajaxLocation ) + "" ).replace( rhash, "" ).replace( rprotocol, ajaxLocParts[ 1 ] + "//" );
+
+ // Alias method option to type as per ticket #12004
+ s.type = options.method || options.type || s.method || s.type;
+
+ // Extract dataTypes list
+ s.dataTypes = jQuery.trim( s.dataType || "*" ).toLowerCase().match( core_rnotwhite ) || [""];
+
+ // A cross-domain request is in order when we have a protocol:host:port mismatch
+ if ( s.crossDomain == null ) {
+ parts = rurl.exec( s.url.toLowerCase() );
+ s.crossDomain = !!( parts &&
+ ( parts[ 1 ] !== ajaxLocParts[ 1 ] || parts[ 2 ] !== ajaxLocParts[ 2 ] ||
+ ( parts[ 3 ] || ( parts[ 1 ] === "http:" ? "80" : "443" ) ) !==
+ ( ajaxLocParts[ 3 ] || ( ajaxLocParts[ 1 ] === "http:" ? "80" : "443" ) ) )
+ );
+ }
+
+ // Convert data if not already a string
+ if ( s.data && s.processData && typeof s.data !== "string" ) {
+ s.data = jQuery.param( s.data, s.traditional );
+ }
+
+ // Apply prefilters
+ inspectPrefiltersOrTransports( prefilters, s, options, jqXHR );
+
+ // If request was aborted inside a prefilter, stop there
+ if ( state === 2 ) {
+ return jqXHR;
+ }
+
+ // We can fire global events as of now if asked to
+ fireGlobals = s.global;
+
+ // Watch for a new set of requests
+ if ( fireGlobals && jQuery.active++ === 0 ) {
+ jQuery.event.trigger("ajaxStart");
+ }
+
+ // Uppercase the type
+ s.type = s.type.toUpperCase();
+
+ // Determine if request has content
+ s.hasContent = !rnoContent.test( s.type );
+
+ // Save the URL in case we're toying with the If-Modified-Since
+ // and/or If-None-Match header later on
+ cacheURL = s.url;
+
+ // More options handling for requests with no content
+ if ( !s.hasContent ) {
+
+ // If data is available, append data to url
+ if ( s.data ) {
+ cacheURL = ( s.url += ( ajax_rquery.test( cacheURL ) ? "&" : "?" ) + s.data );
+ // #9682: remove data so that it's not used in an eventual retry
+ delete s.data;
+ }
+
+ // Add anti-cache in url if needed
+ if ( s.cache === false ) {
+ s.url = rts.test( cacheURL ) ?
+
+ // If there is already a '_' parameter, set its value
+ cacheURL.replace( rts, "$1_=" + ajax_nonce++ ) :
+
+ // Otherwise add one to the end
+ cacheURL + ( ajax_rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + ajax_nonce++;
+ }
+ }
+
+ // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
+ if ( s.ifModified ) {
+ if ( jQuery.lastModified[ cacheURL ] ) {
+ jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ cacheURL ] );
+ }
+ if ( jQuery.etag[ cacheURL ] ) {
+ jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ cacheURL ] );
+ }
+ }
+
+ // Set the correct header, if data is being sent
+ if ( s.data && s.hasContent && s.contentType !== false || options.contentType ) {
+ jqXHR.setRequestHeader( "Content-Type", s.contentType );
+ }
+
+ // Set the Accepts header for the server, depending on the dataType
+ jqXHR.setRequestHeader(
+ "Accept",
+ s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[0] ] ?
+ s.accepts[ s.dataTypes[0] ] + ( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) :
+ s.accepts[ "*" ]
+ );
+
+ // Check for headers option
+ for ( i in s.headers ) {
+ jqXHR.setRequestHeader( i, s.headers[ i ] );
+ }
+
+ // Allow custom headers/mimetypes and early abort
+ if ( s.beforeSend && ( s.beforeSend.call( callbackContext, jqXHR, s ) === false || state === 2 ) ) {
+ // Abort if not done already and return
+ return jqXHR.abort();
+ }
+
+ // aborting is no longer a cancellation
+ strAbort = "abort";
+
+ // Install callbacks on deferreds
+ for ( i in { success: 1, error: 1, complete: 1 } ) {
+ jqXHR[ i ]( s[ i ] );
+ }
+
+ // Get transport
+ transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR );
+
+ // If no transport, we auto-abort
+ if ( !transport ) {
+ done( -1, "No Transport" );
+ } else {
+ jqXHR.readyState = 1;
+
+ // Send global event
+ if ( fireGlobals ) {
+ globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] );
+ }
+ // Timeout
+ if ( s.async && s.timeout > 0 ) {
+ timeoutTimer = setTimeout(function() {
+ jqXHR.abort("timeout");
+ }, s.timeout );
+ }
+
+ try {
+ state = 1;
+ transport.send( requestHeaders, done );
+ } catch ( e ) {
+ // Propagate exception as error if not done
+ if ( state < 2 ) {
+ done( -1, e );
+ // Simply rethrow otherwise
+ } else {
+ throw e;
+ }
+ }
+ }
+
+ // Callback for when everything is done
+ function done( status, nativeStatusText, responses, headers ) {
+ var isSuccess, success, error, response, modified,
+ statusText = nativeStatusText;
+
+ // Called once
+ if ( state === 2 ) {
+ return;
+ }
+
+ // State is "done" now
+ state = 2;
+
+ // Clear timeout if it exists
+ if ( timeoutTimer ) {
+ clearTimeout( timeoutTimer );
+ }
+
+ // Dereference transport for early garbage collection
+ // (no matter how long the jqXHR object will be used)
+ transport = undefined;
+
+ // Cache response headers
+ responseHeadersString = headers || "";
+
+ // Set readyState
+ jqXHR.readyState = status > 0 ? 4 : 0;
+
+ // Determine if successful
+ isSuccess = status >= 200 && status < 300 || status === 304;
+
+ // Get response data
+ if ( responses ) {
+ response = ajaxHandleResponses( s, jqXHR, responses );
+ }
+
+ // Convert no matter what (that way responseXXX fields are always set)
+ response = ajaxConvert( s, response, jqXHR, isSuccess );
+
+ // If successful, handle type chaining
+ if ( isSuccess ) {
+
+ // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
+ if ( s.ifModified ) {
+ modified = jqXHR.getResponseHeader("Last-Modified");
+ if ( modified ) {
+ jQuery.lastModified[ cacheURL ] = modified;
+ }
+ modified = jqXHR.getResponseHeader("etag");
+ if ( modified ) {
+ jQuery.etag[ cacheURL ] = modified;
+ }
+ }
+
+ // if no content
+ if ( status === 204 || s.type === "HEAD" ) {
+ statusText = "nocontent";
+
+ // if not modified
+ } else if ( status === 304 ) {
+ statusText = "notmodified";
+
+ // If we have data, let's convert it
+ } else {
+ statusText = response.state;
+ success = response.data;
+ error = response.error;
+ isSuccess = !error;
+ }
+ } else {
+ // We extract error from statusText
+ // then normalize statusText and status for non-aborts
+ error = statusText;
+ if ( status || !statusText ) {
+ statusText = "error";
+ if ( status < 0 ) {
+ status = 0;
+ }
+ }
+ }
+
+ // Set data for the fake xhr object
+ jqXHR.status = status;
+ jqXHR.statusText = ( nativeStatusText || statusText ) + "";
+
+ // Success/Error
+ if ( isSuccess ) {
+ deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] );
+ } else {
+ deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] );
+ }
+
+ // Status-dependent callbacks
+ jqXHR.statusCode( statusCode );
+ statusCode = undefined;
+
+ if ( fireGlobals ) {
+ globalEventContext.trigger( isSuccess ? "ajaxSuccess" : "ajaxError",
+ [ jqXHR, s, isSuccess ? success : error ] );
+ }
+
+ // Complete
+ completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] );
+
+ if ( fireGlobals ) {
+ globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] );
+ // Handle the global AJAX counter
+ if ( !( --jQuery.active ) ) {
+ jQuery.event.trigger("ajaxStop");
+ }
+ }
+ }
+
+ return jqXHR;
+ },
+
+ getJSON: function( url, data, callback ) {
+ return jQuery.get( url, data, callback, "json" );
+ },
+
+ getScript: function( url, callback ) {
+ return jQuery.get( url, undefined, callback, "script" );
+ }
+});
+
+jQuery.each( [ "get", "post" ], function( i, method ) {
+ jQuery[ method ] = function( url, data, callback, type ) {
+ // shift arguments if data argument was omitted
+ if ( jQuery.isFunction( data ) ) {
+ type = type || callback;
+ callback = data;
+ data = undefined;
+ }
+
+ return jQuery.ajax({
+ url: url,
+ type: method,
+ dataType: type,
+ data: data,
+ success: callback
+ });
+ };
+});
+
+/* Handles responses to an ajax request:
+ * - finds the right dataType (mediates between content-type and expected dataType)
+ * - returns the corresponding response
+ */
+function ajaxHandleResponses( s, jqXHR, responses ) {
+ var firstDataType, ct, finalDataType, type,
+ contents = s.contents,
+ dataTypes = s.dataTypes;
+
+ // Remove auto dataType and get content-type in the process
+ while( dataTypes[ 0 ] === "*" ) {
+ dataTypes.shift();
+ if ( ct === undefined ) {
+ ct = s.mimeType || jqXHR.getResponseHeader("Content-Type");
+ }
+ }
+
+ // Check if we're dealing with a known content-type
+ if ( ct ) {
+ for ( type in contents ) {
+ if ( contents[ type ] && contents[ type ].test( ct ) ) {
+ dataTypes.unshift( type );
+ break;
+ }
+ }
+ }
+
+ // Check to see if we have a response for the expected dataType
+ if ( dataTypes[ 0 ] in responses ) {
+ finalDataType = dataTypes[ 0 ];
+ } else {
+ // Try convertible dataTypes
+ for ( type in responses ) {
+ if ( !dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[0] ] ) {
+ finalDataType = type;
+ break;
+ }
+ if ( !firstDataType ) {
+ firstDataType = type;
+ }
+ }
+ // Or just use first one
+ finalDataType = finalDataType || firstDataType;
+ }
+
+ // If we found a dataType
+ // We add the dataType to the list if needed
+ // and return the corresponding response
+ if ( finalDataType ) {
+ if ( finalDataType !== dataTypes[ 0 ] ) {
+ dataTypes.unshift( finalDataType );
+ }
+ return responses[ finalDataType ];
+ }
+}
+
+/* Chain conversions given the request and the original response
+ * Also sets the responseXXX fields on the jqXHR instance
+ */
+function ajaxConvert( s, response, jqXHR, isSuccess ) {
+ var conv2, current, conv, tmp, prev,
+ converters = {},
+ // Work with a copy of dataTypes in case we need to modify it for conversion
+ dataTypes = s.dataTypes.slice();
+
+ // Create converters map with lowercased keys
+ if ( dataTypes[ 1 ] ) {
+ for ( conv in s.converters ) {
+ converters[ conv.toLowerCase() ] = s.converters[ conv ];
+ }
+ }
+
+ current = dataTypes.shift();
+
+ // Convert to each sequential dataType
+ while ( current ) {
+
+ if ( s.responseFields[ current ] ) {
+ jqXHR[ s.responseFields[ current ] ] = response;
+ }
+
+ // Apply the dataFilter if provided
+ if ( !prev && isSuccess && s.dataFilter ) {
+ response = s.dataFilter( response, s.dataType );
+ }
+
+ prev = current;
+ current = dataTypes.shift();
+
+ if ( current ) {
+
+ // There's only work to do if current dataType is non-auto
+ if ( current === "*" ) {
+
+ current = prev;
+
+ // Convert response if prev dataType is non-auto and differs from current
+ } else if ( prev !== "*" && prev !== current ) {
+
+ // Seek a direct converter
+ conv = converters[ prev + " " + current ] || converters[ "* " + current ];
+
+ // If none found, seek a pair
+ if ( !conv ) {
+ for ( conv2 in converters ) {
+
+ // If conv2 outputs current
+ tmp = conv2.split( " " );
+ if ( tmp[ 1 ] === current ) {
+
+ // If prev can be converted to accepted input
+ conv = converters[ prev + " " + tmp[ 0 ] ] ||
+ converters[ "* " + tmp[ 0 ] ];
+ if ( conv ) {
+ // Condense equivalence converters
+ if ( conv === true ) {
+ conv = converters[ conv2 ];
+
+ // Otherwise, insert the intermediate dataType
+ } else if ( converters[ conv2 ] !== true ) {
+ current = tmp[ 0 ];
+ dataTypes.unshift( tmp[ 1 ] );
+ }
+ break;
+ }
+ }
+ }
+ }
+
+ // Apply converter (if not an equivalence)
+ if ( conv !== true ) {
+
+ // Unless errors are allowed to bubble, catch and return them
+ if ( conv && s[ "throws" ] ) {
+ response = conv( response );
+ } else {
+ try {
+ response = conv( response );
+ } catch ( e ) {
+ return { state: "parsererror", error: conv ? e : "No conversion from " + prev + " to " + current };
+ }
+ }
+ }
+ }
+ }
+ }
+
+ return { state: "success", data: response };
+}
+// Install script dataType
+jQuery.ajaxSetup({
+ accepts: {
+ script: "text/javascript, application/javascript, application/ecmascript, application/x-ecmascript"
+ },
+ contents: {
+ script: /(?:java|ecma)script/
+ },
+ converters: {
+ "text script": function( text ) {
+ jQuery.globalEval( text );
+ return text;
+ }
+ }
+});
+
+// Handle cache's special case and global
+jQuery.ajaxPrefilter( "script", function( s ) {
+ if ( s.cache === undefined ) {
+ s.cache = false;
+ }
+ if ( s.crossDomain ) {
+ s.type = "GET";
+ s.global = false;
+ }
+});
+
+// Bind script tag hack transport
+jQuery.ajaxTransport( "script", function(s) {
+
+ // This transport only deals with cross domain requests
+ if ( s.crossDomain ) {
+
+ var script,
+ head = document.head || jQuery("head")[0] || document.documentElement;
+
+ return {
+
+ send: function( _, callback ) {
+
+ script = document.createElement("script");
+
+ script.async = true;
+
+ if ( s.scriptCharset ) {
+ script.charset = s.scriptCharset;
+ }
+
+ script.src = s.url;
+
+ // Attach handlers for all browsers
+ script.onload = script.onreadystatechange = function( _, isAbort ) {
+
+ if ( isAbort || !script.readyState || /loaded|complete/.test( script.readyState ) ) {
+
+ // Handle memory leak in IE
+ script.onload = script.onreadystatechange = null;
+
+ // Remove the script
+ if ( script.parentNode ) {
+ script.parentNode.removeChild( script );
+ }
+
+ // Dereference the script
+ script = null;
+
+ // Callback if not abort
+ if ( !isAbort ) {
+ callback( 200, "success" );
+ }
+ }
+ };
+
+ // Circumvent IE6 bugs with base elements (#2709 and #4378) by prepending
+ // Use native DOM manipulation to avoid our domManip AJAX trickery
+ head.insertBefore( script, head.firstChild );
+ },
+
+ abort: function() {
+ if ( script ) {
+ script.onload( undefined, true );
+ }
+ }
+ };
+ }
+});
+var oldCallbacks = [],
+ rjsonp = /(=)\?(?=&|$)|\?\?/;
+
+// Default jsonp settings
+jQuery.ajaxSetup({
+ jsonp: "callback",
+ jsonpCallback: function() {
+ var callback = oldCallbacks.pop() || ( jQuery.expando + "_" + ( ajax_nonce++ ) );
+ this[ callback ] = true;
+ return callback;
+ }
+});
+
+// Detect, normalize options and install callbacks for jsonp requests
+jQuery.ajaxPrefilter( "json jsonp", function( s, originalSettings, jqXHR ) {
+
+ var callbackName, overwritten, responseContainer,
+ jsonProp = s.jsonp !== false && ( rjsonp.test( s.url ) ?
+ "url" :
+ typeof s.data === "string" && !( s.contentType || "" ).indexOf("application/x-www-form-urlencoded") && rjsonp.test( s.data ) && "data"
+ );
+
+ // Handle iff the expected data type is "jsonp" or we have a parameter to set
+ if ( jsonProp || s.dataTypes[ 0 ] === "jsonp" ) {
+
+ // Get callback name, remembering preexisting value associated with it
+ callbackName = s.jsonpCallback = jQuery.isFunction( s.jsonpCallback ) ?
+ s.jsonpCallback() :
+ s.jsonpCallback;
+
+ // Insert callback into url or form data
+ if ( jsonProp ) {
+ s[ jsonProp ] = s[ jsonProp ].replace( rjsonp, "$1" + callbackName );
+ } else if ( s.jsonp !== false ) {
+ s.url += ( ajax_rquery.test( s.url ) ? "&" : "?" ) + s.jsonp + "=" + callbackName;
+ }
+
+ // Use data converter to retrieve json after script execution
+ s.converters["script json"] = function() {
+ if ( !responseContainer ) {
+ jQuery.error( callbackName + " was not called" );
+ }
+ return responseContainer[ 0 ];
+ };
+
+ // force json dataType
+ s.dataTypes[ 0 ] = "json";
+
+ // Install callback
+ overwritten = window[ callbackName ];
+ window[ callbackName ] = function() {
+ responseContainer = arguments;
+ };
+
+ // Clean-up function (fires after converters)
+ jqXHR.always(function() {
+ // Restore preexisting value
+ window[ callbackName ] = overwritten;
+
+ // Save back as free
+ if ( s[ callbackName ] ) {
+ // make sure that re-using the options doesn't screw things around
+ s.jsonpCallback = originalSettings.jsonpCallback;
+
+ // save the callback name for future use
+ oldCallbacks.push( callbackName );
+ }
+
+ // Call if it was a function and we have a response
+ if ( responseContainer && jQuery.isFunction( overwritten ) ) {
+ overwritten( responseContainer[ 0 ] );
+ }
+
+ responseContainer = overwritten = undefined;
+ });
+
+ // Delegate to script
+ return "script";
+ }
+});
+var xhrCallbacks, xhrSupported,
+ xhrId = 0,
+ // #5280: Internet Explorer will keep connections alive if we don't abort on unload
+ xhrOnUnloadAbort = window.ActiveXObject && function() {
+ // Abort all pending requests
+ var key;
+ for ( key in xhrCallbacks ) {
+ xhrCallbacks[ key ]( undefined, true );
+ }
+ };
+
+// Functions to create xhrs
+function createStandardXHR() {
+ try {
+ return new window.XMLHttpRequest();
+ } catch( e ) {}
+}
+
+function createActiveXHR() {
+ try {
+ return new window.ActiveXObject("Microsoft.XMLHTTP");
+ } catch( e ) {}
+}
+
+// Create the request object
+// (This is still attached to ajaxSettings for backward compatibility)
+jQuery.ajaxSettings.xhr = window.ActiveXObject ?
+ /* Microsoft failed to properly
+ * implement the XMLHttpRequest in IE7 (can't request local files),
+ * so we use the ActiveXObject when it is available
+ * Additionally XMLHttpRequest can be disabled in IE7/IE8 so
+ * we need a fallback.
+ */
+ function() {
+ return !this.isLocal && createStandardXHR() || createActiveXHR();
+ } :
+ // For all other browsers, use the standard XMLHttpRequest object
+ createStandardXHR;
+
+// Determine support properties
+xhrSupported = jQuery.ajaxSettings.xhr();
+jQuery.support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported );
+xhrSupported = jQuery.support.ajax = !!xhrSupported;
+
+// Create transport if the browser can provide an xhr
+if ( xhrSupported ) {
+
+ jQuery.ajaxTransport(function( s ) {
+ // Cross domain only allowed if supported through XMLHttpRequest
+ if ( !s.crossDomain || jQuery.support.cors ) {
+
+ var callback;
+
+ return {
+ send: function( headers, complete ) {
+
+ // Get a new xhr
+ var handle, i,
+ xhr = s.xhr();
+
+ // Open the socket
+ // Passing null username, generates a login popup on Opera (#2865)
+ if ( s.username ) {
+ xhr.open( s.type, s.url, s.async, s.username, s.password );
+ } else {
+ xhr.open( s.type, s.url, s.async );
+ }
+
+ // Apply custom fields if provided
+ if ( s.xhrFields ) {
+ for ( i in s.xhrFields ) {
+ xhr[ i ] = s.xhrFields[ i ];
+ }
+ }
+
+ // Override mime type if needed
+ if ( s.mimeType && xhr.overrideMimeType ) {
+ xhr.overrideMimeType( s.mimeType );
+ }
+
+ // X-Requested-With header
+ // For cross-domain requests, seeing as conditions for a preflight are
+ // akin to a jigsaw puzzle, we simply never set it to be sure.
+ // (it can always be set on a per-request basis or even using ajaxSetup)
+ // For same-domain requests, won't change header if already provided.
+ if ( !s.crossDomain && !headers["X-Requested-With"] ) {
+ headers["X-Requested-With"] = "XMLHttpRequest";
+ }
+
+ // Need an extra try/catch for cross domain requests in Firefox 3
+ try {
+ for ( i in headers ) {
+ xhr.setRequestHeader( i, headers[ i ] );
+ }
+ } catch( err ) {}
+
+ // Do send the request
+ // This may raise an exception which is actually
+ // handled in jQuery.ajax (so no try/catch here)
+ xhr.send( ( s.hasContent && s.data ) || null );
+
+ // Listener
+ callback = function( _, isAbort ) {
+ var status, responseHeaders, statusText, responses;
+
+ // Firefox throws exceptions when accessing properties
+ // of an xhr when a network error occurred
+ // http://helpful.knobs-dials.com/index.php/Component_returned_failure_code:_0x80040111_(NS_ERROR_NOT_AVAILABLE)
+ try {
+
+ // Was never called and is aborted or complete
+ if ( callback && ( isAbort || xhr.readyState === 4 ) ) {
+
+ // Only called once
+ callback = undefined;
+
+ // Do not keep as active anymore
+ if ( handle ) {
+ xhr.onreadystatechange = jQuery.noop;
+ if ( xhrOnUnloadAbort ) {
+ delete xhrCallbacks[ handle ];
+ }
+ }
+
+ // If it's an abort
+ if ( isAbort ) {
+ // Abort it manually if needed
+ if ( xhr.readyState !== 4 ) {
+ xhr.abort();
+ }
+ } else {
+ responses = {};
+ status = xhr.status;
+ responseHeaders = xhr.getAllResponseHeaders();
+
+ // When requesting binary data, IE6-9 will throw an exception
+ // on any attempt to access responseText (#11426)
+ if ( typeof xhr.responseText === "string" ) {
+ responses.text = xhr.responseText;
+ }
+
+ // Firefox throws an exception when accessing
+ // statusText for faulty cross-domain requests
+ try {
+ statusText = xhr.statusText;
+ } catch( e ) {
+ // We normalize with Webkit giving an empty statusText
+ statusText = "";
+ }
+
+ // Filter status for non standard behaviors
+
+ // If the request is local and we have data: assume a success
+ // (success with no data won't get notified, that's the best we
+ // can do given current implementations)
+ if ( !status && s.isLocal && !s.crossDomain ) {
+ status = responses.text ? 200 : 404;
+ // IE - #1450: sometimes returns 1223 when it should be 204
+ } else if ( status === 1223 ) {
+ status = 204;
+ }
+ }
+ }
+ } catch( firefoxAccessException ) {
+ if ( !isAbort ) {
+ complete( -1, firefoxAccessException );
+ }
+ }
+
+ // Call complete if needed
+ if ( responses ) {
+ complete( status, statusText, responses, responseHeaders );
+ }
+ };
+
+ if ( !s.async ) {
+ // if we're in sync mode we fire the callback
+ callback();
+ } else if ( xhr.readyState === 4 ) {
+ // (IE6 & IE7) if it's in cache and has been
+ // retrieved directly we need to fire the callback
+ setTimeout( callback );
+ } else {
+ handle = ++xhrId;
+ if ( xhrOnUnloadAbort ) {
+ // Create the active xhrs callbacks list if needed
+ // and attach the unload handler
+ if ( !xhrCallbacks ) {
+ xhrCallbacks = {};
+ jQuery( window ).unload( xhrOnUnloadAbort );
+ }
+ // Add to list of active xhrs callbacks
+ xhrCallbacks[ handle ] = callback;
+ }
+ xhr.onreadystatechange = callback;
+ }
+ },
+
+ abort: function() {
+ if ( callback ) {
+ callback( undefined, true );
+ }
+ }
+ };
+ }
+ });
+}
+var fxNow, timerId,
+ rfxtypes = /^(?:toggle|show|hide)$/,
+ rfxnum = new RegExp( "^(?:([+-])=|)(" + core_pnum + ")([a-z%]*)$", "i" ),
+ rrun = /queueHooks$/,
+ animationPrefilters = [ defaultPrefilter ],
+ tweeners = {
+ "*": [function( prop, value ) {
+ var tween = this.createTween( prop, value ),
+ target = tween.cur(),
+ parts = rfxnum.exec( value ),
+ unit = parts && parts[ 3 ] || ( jQuery.cssNumber[ prop ] ? "" : "px" ),
+
+ // Starting value computation is required for potential unit mismatches
+ start = ( jQuery.cssNumber[ prop ] || unit !== "px" && +target ) &&
+ rfxnum.exec( jQuery.css( tween.elem, prop ) ),
+ scale = 1,
+ maxIterations = 20;
+
+ if ( start && start[ 3 ] !== unit ) {
+ // Trust units reported by jQuery.css
+ unit = unit || start[ 3 ];
+
+ // Make sure we update the tween properties later on
+ parts = parts || [];
+
+ // Iteratively approximate from a nonzero starting point
+ start = +target || 1;
+
+ do {
+ // If previous iteration zeroed out, double until we get *something*
+ // Use a string for doubling factor so we don't accidentally see scale as unchanged below
+ scale = scale || ".5";
+
+ // Adjust and apply
+ start = start / scale;
+ jQuery.style( tween.elem, prop, start + unit );
+
+ // Update scale, tolerating zero or NaN from tween.cur()
+ // And breaking the loop if scale is unchanged or perfect, or if we've just had enough
+ } while ( scale !== (scale = tween.cur() / target) && scale !== 1 && --maxIterations );
+ }
+
+ // Update tween properties
+ if ( parts ) {
+ start = tween.start = +start || +target || 0;
+ tween.unit = unit;
+ // If a +=/-= token was provided, we're doing a relative animation
+ tween.end = parts[ 1 ] ?
+ start + ( parts[ 1 ] + 1 ) * parts[ 2 ] :
+ +parts[ 2 ];
+ }
+
+ return tween;
+ }]
+ };
+
+// Animations created synchronously will run synchronously
+function createFxNow() {
+ setTimeout(function() {
+ fxNow = undefined;
+ });
+ return ( fxNow = jQuery.now() );
+}
+
+function createTween( value, prop, animation ) {
+ var tween,
+ collection = ( tweeners[ prop ] || [] ).concat( tweeners[ "*" ] ),
+ index = 0,
+ length = collection.length;
+ for ( ; index < length; index++ ) {
+ if ( (tween = collection[ index ].call( animation, prop, value )) ) {
+
+ // we're done with this property
+ return tween;
+ }
+ }
+}
+
+function Animation( elem, properties, options ) {
+ var result,
+ stopped,
+ index = 0,
+ length = animationPrefilters.length,
+ deferred = jQuery.Deferred().always( function() {
+ // don't match elem in the :animated selector
+ delete tick.elem;
+ }),
+ tick = function() {
+ if ( stopped ) {
+ return false;
+ }
+ var currentTime = fxNow || createFxNow(),
+ remaining = Math.max( 0, animation.startTime + animation.duration - currentTime ),
+ // archaic crash bug won't allow us to use 1 - ( 0.5 || 0 ) (#12497)
+ temp = remaining / animation.duration || 0,
+ percent = 1 - temp,
+ index = 0,
+ length = animation.tweens.length;
+
+ for ( ; index < length ; index++ ) {
+ animation.tweens[ index ].run( percent );
+ }
+
+ deferred.notifyWith( elem, [ animation, percent, remaining ]);
+
+ if ( percent < 1 && length ) {
+ return remaining;
+ } else {
+ deferred.resolveWith( elem, [ animation ] );
+ return false;
+ }
+ },
+ animation = deferred.promise({
+ elem: elem,
+ props: jQuery.extend( {}, properties ),
+ opts: jQuery.extend( true, { specialEasing: {} }, options ),
+ originalProperties: properties,
+ originalOptions: options,
+ startTime: fxNow || createFxNow(),
+ duration: options.duration,
+ tweens: [],
+ createTween: function( prop, end ) {
+ var tween = jQuery.Tween( elem, animation.opts, prop, end,
+ animation.opts.specialEasing[ prop ] || animation.opts.easing );
+ animation.tweens.push( tween );
+ return tween;
+ },
+ stop: function( gotoEnd ) {
+ var index = 0,
+ // if we are going to the end, we want to run all the tweens
+ // otherwise we skip this part
+ length = gotoEnd ? animation.tweens.length : 0;
+ if ( stopped ) {
+ return this;
+ }
+ stopped = true;
+ for ( ; index < length ; index++ ) {
+ animation.tweens[ index ].run( 1 );
+ }
+
+ // resolve when we played the last frame
+ // otherwise, reject
+ if ( gotoEnd ) {
+ deferred.resolveWith( elem, [ animation, gotoEnd ] );
+ } else {
+ deferred.rejectWith( elem, [ animation, gotoEnd ] );
+ }
+ return this;
+ }
+ }),
+ props = animation.props;
+
+ propFilter( props, animation.opts.specialEasing );
+
+ for ( ; index < length ; index++ ) {
+ result = animationPrefilters[ index ].call( animation, elem, props, animation.opts );
+ if ( result ) {
+ return result;
+ }
+ }
+
+ jQuery.map( props, createTween, animation );
+
+ if ( jQuery.isFunction( animation.opts.start ) ) {
+ animation.opts.start.call( elem, animation );
+ }
+
+ jQuery.fx.timer(
+ jQuery.extend( tick, {
+ elem: elem,
+ anim: animation,
+ queue: animation.opts.queue
+ })
+ );
+
+ // attach callbacks from options
+ return animation.progress( animation.opts.progress )
+ .done( animation.opts.done, animation.opts.complete )
+ .fail( animation.opts.fail )
+ .always( animation.opts.always );
+}
+
+function propFilter( props, specialEasing ) {
+ var index, name, easing, value, hooks;
+
+ // camelCase, specialEasing and expand cssHook pass
+ for ( index in props ) {
+ name = jQuery.camelCase( index );
+ easing = specialEasing[ name ];
+ value = props[ index ];
+ if ( jQuery.isArray( value ) ) {
+ easing = value[ 1 ];
+ value = props[ index ] = value[ 0 ];
+ }
+
+ if ( index !== name ) {
+ props[ name ] = value;
+ delete props[ index ];
+ }
+
+ hooks = jQuery.cssHooks[ name ];
+ if ( hooks && "expand" in hooks ) {
+ value = hooks.expand( value );
+ delete props[ name ];
+
+ // not quite $.extend, this wont overwrite keys already present.
+ // also - reusing 'index' from above because we have the correct "name"
+ for ( index in value ) {
+ if ( !( index in props ) ) {
+ props[ index ] = value[ index ];
+ specialEasing[ index ] = easing;
+ }
+ }
+ } else {
+ specialEasing[ name ] = easing;
+ }
+ }
+}
+
+jQuery.Animation = jQuery.extend( Animation, {
+
+ tweener: function( props, callback ) {
+ if ( jQuery.isFunction( props ) ) {
+ callback = props;
+ props = [ "*" ];
+ } else {
+ props = props.split(" ");
+ }
+
+ var prop,
+ index = 0,
+ length = props.length;
+
+ for ( ; index < length ; index++ ) {
+ prop = props[ index ];
+ tweeners[ prop ] = tweeners[ prop ] || [];
+ tweeners[ prop ].unshift( callback );
+ }
+ },
+
+ prefilter: function( callback, prepend ) {
+ if ( prepend ) {
+ animationPrefilters.unshift( callback );
+ } else {
+ animationPrefilters.push( callback );
+ }
+ }
+});
+
+function defaultPrefilter( elem, props, opts ) {
+ /* jshint validthis: true */
+ var prop, value, toggle, tween, hooks, oldfire,
+ anim = this,
+ orig = {},
+ style = elem.style,
+ hidden = elem.nodeType && isHidden( elem ),
+ dataShow = jQuery._data( elem, "fxshow" );
+
+ // handle queue: false promises
+ if ( !opts.queue ) {
+ hooks = jQuery._queueHooks( elem, "fx" );
+ if ( hooks.unqueued == null ) {
+ hooks.unqueued = 0;
+ oldfire = hooks.empty.fire;
+ hooks.empty.fire = function() {
+ if ( !hooks.unqueued ) {
+ oldfire();
+ }
+ };
+ }
+ hooks.unqueued++;
+
+ anim.always(function() {
+ // doing this makes sure that the complete handler will be called
+ // before this completes
+ anim.always(function() {
+ hooks.unqueued--;
+ if ( !jQuery.queue( elem, "fx" ).length ) {
+ hooks.empty.fire();
+ }
+ });
+ });
+ }
+
+ // height/width overflow pass
+ if ( elem.nodeType === 1 && ( "height" in props || "width" in props ) ) {
+ // Make sure that nothing sneaks out
+ // Record all 3 overflow attributes because IE does not
+ // change the overflow attribute when overflowX and
+ // overflowY are set to the same value
+ opts.overflow = [ style.overflow, style.overflowX, style.overflowY ];
+
+ // Set display property to inline-block for height/width
+ // animations on inline elements that are having width/height animated
+ if ( jQuery.css( elem, "display" ) === "inline" &&
+ jQuery.css( elem, "float" ) === "none" ) {
+
+ // inline-level elements accept inline-block;
+ // block-level elements need to be inline with layout
+ if ( !jQuery.support.inlineBlockNeedsLayout || css_defaultDisplay( elem.nodeName ) === "inline" ) {
+ style.display = "inline-block";
+
+ } else {
+ style.zoom = 1;
+ }
+ }
+ }
+
+ if ( opts.overflow ) {
+ style.overflow = "hidden";
+ if ( !jQuery.support.shrinkWrapBlocks ) {
+ anim.always(function() {
+ style.overflow = opts.overflow[ 0 ];
+ style.overflowX = opts.overflow[ 1 ];
+ style.overflowY = opts.overflow[ 2 ];
+ });
+ }
+ }
+
+
+ // show/hide pass
+ for ( prop in props ) {
+ value = props[ prop ];
+ if ( rfxtypes.exec( value ) ) {
+ delete props[ prop ];
+ toggle = toggle || value === "toggle";
+ if ( value === ( hidden ? "hide" : "show" ) ) {
+ continue;
+ }
+ orig[ prop ] = dataShow && dataShow[ prop ] || jQuery.style( elem, prop );
+ }
+ }
+
+ if ( !jQuery.isEmptyObject( orig ) ) {
+ if ( dataShow ) {
+ if ( "hidden" in dataShow ) {
+ hidden = dataShow.hidden;
+ }
+ } else {
+ dataShow = jQuery._data( elem, "fxshow", {} );
+ }
+
+ // store state if its toggle - enables .stop().toggle() to "reverse"
+ if ( toggle ) {
+ dataShow.hidden = !hidden;
+ }
+ if ( hidden ) {
+ jQuery( elem ).show();
+ } else {
+ anim.done(function() {
+ jQuery( elem ).hide();
+ });
+ }
+ anim.done(function() {
+ var prop;
+ jQuery._removeData( elem, "fxshow" );
+ for ( prop in orig ) {
+ jQuery.style( elem, prop, orig[ prop ] );
+ }
+ });
+ for ( prop in orig ) {
+ tween = createTween( hidden ? dataShow[ prop ] : 0, prop, anim );
+
+ if ( !( prop in dataShow ) ) {
+ dataShow[ prop ] = tween.start;
+ if ( hidden ) {
+ tween.end = tween.start;
+ tween.start = prop === "width" || prop === "height" ? 1 : 0;
+ }
+ }
+ }
+ }
+}
+
+function Tween( elem, options, prop, end, easing ) {
+ return new Tween.prototype.init( elem, options, prop, end, easing );
+}
+jQuery.Tween = Tween;
+
+Tween.prototype = {
+ constructor: Tween,
+ init: function( elem, options, prop, end, easing, unit ) {
+ this.elem = elem;
+ this.prop = prop;
+ this.easing = easing || "swing";
+ this.options = options;
+ this.start = this.now = this.cur();
+ this.end = end;
+ this.unit = unit || ( jQuery.cssNumber[ prop ] ? "" : "px" );
+ },
+ cur: function() {
+ var hooks = Tween.propHooks[ this.prop ];
+
+ return hooks && hooks.get ?
+ hooks.get( this ) :
+ Tween.propHooks._default.get( this );
+ },
+ run: function( percent ) {
+ var eased,
+ hooks = Tween.propHooks[ this.prop ];
+
+ if ( this.options.duration ) {
+ this.pos = eased = jQuery.easing[ this.easing ](
+ percent, this.options.duration * percent, 0, 1, this.options.duration
+ );
+ } else {
+ this.pos = eased = percent;
+ }
+ this.now = ( this.end - this.start ) * eased + this.start;
+
+ if ( this.options.step ) {
+ this.options.step.call( this.elem, this.now, this );
+ }
+
+ if ( hooks && hooks.set ) {
+ hooks.set( this );
+ } else {
+ Tween.propHooks._default.set( this );
+ }
+ return this;
+ }
+};
+
+Tween.prototype.init.prototype = Tween.prototype;
+
+Tween.propHooks = {
+ _default: {
+ get: function( tween ) {
+ var result;
+
+ if ( tween.elem[ tween.prop ] != null &&
+ (!tween.elem.style || tween.elem.style[ tween.prop ] == null) ) {
+ return tween.elem[ tween.prop ];
+ }
+
+ // passing an empty string as a 3rd parameter to .css will automatically
+ // attempt a parseFloat and fallback to a string if the parse fails
+ // so, simple values such as "10px" are parsed to Float.
+ // complex values such as "rotate(1rad)" are returned as is.
+ result = jQuery.css( tween.elem, tween.prop, "" );
+ // Empty strings, null, undefined and "auto" are converted to 0.
+ return !result || result === "auto" ? 0 : result;
+ },
+ set: function( tween ) {
+ // use step hook for back compat - use cssHook if its there - use .style if its
+ // available and use plain properties where available
+ if ( jQuery.fx.step[ tween.prop ] ) {
+ jQuery.fx.step[ tween.prop ]( tween );
+ } else if ( tween.elem.style && ( tween.elem.style[ jQuery.cssProps[ tween.prop ] ] != null || jQuery.cssHooks[ tween.prop ] ) ) {
+ jQuery.style( tween.elem, tween.prop, tween.now + tween.unit );
+ } else {
+ tween.elem[ tween.prop ] = tween.now;
+ }
+ }
+ }
+};
+
+// Support: IE <=9
+// Panic based approach to setting things on disconnected nodes
+
+Tween.propHooks.scrollTop = Tween.propHooks.scrollLeft = {
+ set: function( tween ) {
+ if ( tween.elem.nodeType && tween.elem.parentNode ) {
+ tween.elem[ tween.prop ] = tween.now;
+ }
+ }
+};
+
+jQuery.each([ "toggle", "show", "hide" ], function( i, name ) {
+ var cssFn = jQuery.fn[ name ];
+ jQuery.fn[ name ] = function( speed, easing, callback ) {
+ return speed == null || typeof speed === "boolean" ?
+ cssFn.apply( this, arguments ) :
+ this.animate( genFx( name, true ), speed, easing, callback );
+ };
+});
+
+jQuery.fn.extend({
+ fadeTo: function( speed, to, easing, callback ) {
+
+ // show any hidden elements after setting opacity to 0
+ return this.filter( isHidden ).css( "opacity", 0 ).show()
+
+ // animate to the value specified
+ .end().animate({ opacity: to }, speed, easing, callback );
+ },
+ animate: function( prop, speed, easing, callback ) {
+ var empty = jQuery.isEmptyObject( prop ),
+ optall = jQuery.speed( speed, easing, callback ),
+ doAnimation = function() {
+ // Operate on a copy of prop so per-property easing won't be lost
+ var anim = Animation( this, jQuery.extend( {}, prop ), optall );
+
+ // Empty animations, or finishing resolves immediately
+ if ( empty || jQuery._data( this, "finish" ) ) {
+ anim.stop( true );
+ }
+ };
+ doAnimation.finish = doAnimation;
+
+ return empty || optall.queue === false ?
+ this.each( doAnimation ) :
+ this.queue( optall.queue, doAnimation );
+ },
+ stop: function( type, clearQueue, gotoEnd ) {
+ var stopQueue = function( hooks ) {
+ var stop = hooks.stop;
+ delete hooks.stop;
+ stop( gotoEnd );
+ };
+
+ if ( typeof type !== "string" ) {
+ gotoEnd = clearQueue;
+ clearQueue = type;
+ type = undefined;
+ }
+ if ( clearQueue && type !== false ) {
+ this.queue( type || "fx", [] );
+ }
+
+ return this.each(function() {
+ var dequeue = true,
+ index = type != null && type + "queueHooks",
+ timers = jQuery.timers,
+ data = jQuery._data( this );
+
+ if ( index ) {
+ if ( data[ index ] && data[ index ].stop ) {
+ stopQueue( data[ index ] );
+ }
+ } else {
+ for ( index in data ) {
+ if ( data[ index ] && data[ index ].stop && rrun.test( index ) ) {
+ stopQueue( data[ index ] );
+ }
+ }
+ }
+
+ for ( index = timers.length; index--; ) {
+ if ( timers[ index ].elem === this && (type == null || timers[ index ].queue === type) ) {
+ timers[ index ].anim.stop( gotoEnd );
+ dequeue = false;
+ timers.splice( index, 1 );
+ }
+ }
+
+ // start the next in the queue if the last step wasn't forced
+ // timers currently will call their complete callbacks, which will dequeue
+ // but only if they were gotoEnd
+ if ( dequeue || !gotoEnd ) {
+ jQuery.dequeue( this, type );
+ }
+ });
+ },
+ finish: function( type ) {
+ if ( type !== false ) {
+ type = type || "fx";
+ }
+ return this.each(function() {
+ var index,
+ data = jQuery._data( this ),
+ queue = data[ type + "queue" ],
+ hooks = data[ type + "queueHooks" ],
+ timers = jQuery.timers,
+ length = queue ? queue.length : 0;
+
+ // enable finishing flag on private data
+ data.finish = true;
+
+ // empty the queue first
+ jQuery.queue( this, type, [] );
+
+ if ( hooks && hooks.stop ) {
+ hooks.stop.call( this, true );
+ }
+
+ // look for any active animations, and finish them
+ for ( index = timers.length; index--; ) {
+ if ( timers[ index ].elem === this && timers[ index ].queue === type ) {
+ timers[ index ].anim.stop( true );
+ timers.splice( index, 1 );
+ }
+ }
+
+ // look for any animations in the old queue and finish them
+ for ( index = 0; index < length; index++ ) {
+ if ( queue[ index ] && queue[ index ].finish ) {
+ queue[ index ].finish.call( this );
+ }
+ }
+
+ // turn off finishing flag
+ delete data.finish;
+ });
+ }
+});
+
+// Generate parameters to create a standard animation
+function genFx( type, includeWidth ) {
+ var which,
+ attrs = { height: type },
+ i = 0;
+
+ // if we include width, step value is 1 to do all cssExpand values,
+ // if we don't include width, step value is 2 to skip over Left and Right
+ includeWidth = includeWidth? 1 : 0;
+ for( ; i < 4 ; i += 2 - includeWidth ) {
+ which = cssExpand[ i ];
+ attrs[ "margin" + which ] = attrs[ "padding" + which ] = type;
+ }
+
+ if ( includeWidth ) {
+ attrs.opacity = attrs.width = type;
+ }
+
+ return attrs;
+}
+
+// Generate shortcuts for custom animations
+jQuery.each({
+ slideDown: genFx("show"),
+ slideUp: genFx("hide"),
+ slideToggle: genFx("toggle"),
+ fadeIn: { opacity: "show" },
+ fadeOut: { opacity: "hide" },
+ fadeToggle: { opacity: "toggle" }
+}, function( name, props ) {
+ jQuery.fn[ name ] = function( speed, easing, callback ) {
+ return this.animate( props, speed, easing, callback );
+ };
+});
+
+jQuery.speed = function( speed, easing, fn ) {
+ var opt = speed && typeof speed === "object" ? jQuery.extend( {}, speed ) : {
+ complete: fn || !fn && easing ||
+ jQuery.isFunction( speed ) && speed,
+ duration: speed,
+ easing: fn && easing || easing && !jQuery.isFunction( easing ) && easing
+ };
+
+ opt.duration = jQuery.fx.off ? 0 : typeof opt.duration === "number" ? opt.duration :
+ opt.duration in jQuery.fx.speeds ? jQuery.fx.speeds[ opt.duration ] : jQuery.fx.speeds._default;
+
+ // normalize opt.queue - true/undefined/null -> "fx"
+ if ( opt.queue == null || opt.queue === true ) {
+ opt.queue = "fx";
+ }
+
+ // Queueing
+ opt.old = opt.complete;
+
+ opt.complete = function() {
+ if ( jQuery.isFunction( opt.old ) ) {
+ opt.old.call( this );
+ }
+
+ if ( opt.queue ) {
+ jQuery.dequeue( this, opt.queue );
+ }
+ };
+
+ return opt;
+};
+
+jQuery.easing = {
+ linear: function( p ) {
+ return p;
+ },
+ swing: function( p ) {
+ return 0.5 - Math.cos( p*Math.PI ) / 2;
+ }
+};
+
+jQuery.timers = [];
+jQuery.fx = Tween.prototype.init;
+jQuery.fx.tick = function() {
+ var timer,
+ timers = jQuery.timers,
+ i = 0;
+
+ fxNow = jQuery.now();
+
+ for ( ; i < timers.length; i++ ) {
+ timer = timers[ i ];
+ // Checks the timer has not already been removed
+ if ( !timer() && timers[ i ] === timer ) {
+ timers.splice( i--, 1 );
+ }
+ }
+
+ if ( !timers.length ) {
+ jQuery.fx.stop();
+ }
+ fxNow = undefined;
+};
+
+jQuery.fx.timer = function( timer ) {
+ if ( timer() && jQuery.timers.push( timer ) ) {
+ jQuery.fx.start();
+ }
+};
+
+jQuery.fx.interval = 13;
+
+jQuery.fx.start = function() {
+ if ( !timerId ) {
+ timerId = setInterval( jQuery.fx.tick, jQuery.fx.interval );
+ }
+};
+
+jQuery.fx.stop = function() {
+ clearInterval( timerId );
+ timerId = null;
+};
+
+jQuery.fx.speeds = {
+ slow: 600,
+ fast: 200,
+ // Default speed
+ _default: 400
+};
+
+// Back Compat <1.8 extension point
+jQuery.fx.step = {};
+
+if ( jQuery.expr && jQuery.expr.filters ) {
+ jQuery.expr.filters.animated = function( elem ) {
+ return jQuery.grep(jQuery.timers, function( fn ) {
+ return elem === fn.elem;
+ }).length;
+ };
+}
+jQuery.fn.offset = function( options ) {
+ if ( arguments.length ) {
+ return options === undefined ?
+ this :
+ this.each(function( i ) {
+ jQuery.offset.setOffset( this, options, i );
+ });
+ }
+
+ var docElem, win,
+ box = { top: 0, left: 0 },
+ elem = this[ 0 ],
+ doc = elem && elem.ownerDocument;
+
+ if ( !doc ) {
+ return;
+ }
+
+ docElem = doc.documentElement;
+
+ // Make sure it's not a disconnected DOM node
+ if ( !jQuery.contains( docElem, elem ) ) {
+ return box;
+ }
+
+ // If we don't have gBCR, just use 0,0 rather than error
+ // BlackBerry 5, iOS 3 (original iPhone)
+ if ( typeof elem.getBoundingClientRect !== core_strundefined ) {
+ box = elem.getBoundingClientRect();
+ }
+ win = getWindow( doc );
+ return {
+ top: box.top + ( win.pageYOffset || docElem.scrollTop ) - ( docElem.clientTop || 0 ),
+ left: box.left + ( win.pageXOffset || docElem.scrollLeft ) - ( docElem.clientLeft || 0 )
+ };
+};
+
+jQuery.offset = {
+
+ setOffset: function( elem, options, i ) {
+ var position = jQuery.css( elem, "position" );
+
+ // set position first, in-case top/left are set even on static elem
+ if ( position === "static" ) {
+ elem.style.position = "relative";
+ }
+
+ var curElem = jQuery( elem ),
+ curOffset = curElem.offset(),
+ curCSSTop = jQuery.css( elem, "top" ),
+ curCSSLeft = jQuery.css( elem, "left" ),
+ calculatePosition = ( position === "absolute" || position === "fixed" ) && jQuery.inArray("auto", [curCSSTop, curCSSLeft]) > -1,
+ props = {}, curPosition = {}, curTop, curLeft;
+
+ // need to be able to calculate position if either top or left is auto and position is either absolute or fixed
+ if ( calculatePosition ) {
+ curPosition = curElem.position();
+ curTop = curPosition.top;
+ curLeft = curPosition.left;
+ } else {
+ curTop = parseFloat( curCSSTop ) || 0;
+ curLeft = parseFloat( curCSSLeft ) || 0;
+ }
+
+ if ( jQuery.isFunction( options ) ) {
+ options = options.call( elem, i, curOffset );
+ }
+
+ if ( options.top != null ) {
+ props.top = ( options.top - curOffset.top ) + curTop;
+ }
+ if ( options.left != null ) {
+ props.left = ( options.left - curOffset.left ) + curLeft;
+ }
+
+ if ( "using" in options ) {
+ options.using.call( elem, props );
+ } else {
+ curElem.css( props );
+ }
+ }
+};
+
+
+jQuery.fn.extend({
+
+ position: function() {
+ if ( !this[ 0 ] ) {
+ return;
+ }
+
+ var offsetParent, offset,
+ parentOffset = { top: 0, left: 0 },
+ elem = this[ 0 ];
+
+ // fixed elements are offset from window (parentOffset = {top:0, left: 0}, because it is it's only offset parent
+ if ( jQuery.css( elem, "position" ) === "fixed" ) {
+ // we assume that getBoundingClientRect is available when computed position is fixed
+ offset = elem.getBoundingClientRect();
+ } else {
+ // Get *real* offsetParent
+ offsetParent = this.offsetParent();
+
+ // Get correct offsets
+ offset = this.offset();
+ if ( !jQuery.nodeName( offsetParent[ 0 ], "html" ) ) {
+ parentOffset = offsetParent.offset();
+ }
+
+ // Add offsetParent borders
+ parentOffset.top += jQuery.css( offsetParent[ 0 ], "borderTopWidth", true );
+ parentOffset.left += jQuery.css( offsetParent[ 0 ], "borderLeftWidth", true );
+ }
+
+ // Subtract parent offsets and element margins
+ // note: when an element has margin: auto the offsetLeft and marginLeft
+ // are the same in Safari causing offset.left to incorrectly be 0
+ return {
+ top: offset.top - parentOffset.top - jQuery.css( elem, "marginTop", true ),
+ left: offset.left - parentOffset.left - jQuery.css( elem, "marginLeft", true)
+ };
+ },
+
+ offsetParent: function() {
+ return this.map(function() {
+ var offsetParent = this.offsetParent || docElem;
+ while ( offsetParent && ( !jQuery.nodeName( offsetParent, "html" ) && jQuery.css( offsetParent, "position") === "static" ) ) {
+ offsetParent = offsetParent.offsetParent;
+ }
+ return offsetParent || docElem;
+ });
+ }
+});
+
+
+// Create scrollLeft and scrollTop methods
+jQuery.each( {scrollLeft: "pageXOffset", scrollTop: "pageYOffset"}, function( method, prop ) {
+ var top = /Y/.test( prop );
+
+ jQuery.fn[ method ] = function( val ) {
+ return jQuery.access( this, function( elem, method, val ) {
+ var win = getWindow( elem );
+
+ if ( val === undefined ) {
+ return win ? (prop in win) ? win[ prop ] :
+ win.document.documentElement[ method ] :
+ elem[ method ];
+ }
+
+ if ( win ) {
+ win.scrollTo(
+ !top ? val : jQuery( win ).scrollLeft(),
+ top ? val : jQuery( win ).scrollTop()
+ );
+
+ } else {
+ elem[ method ] = val;
+ }
+ }, method, val, arguments.length, null );
+ };
+});
+
+function getWindow( elem ) {
+ return jQuery.isWindow( elem ) ?
+ elem :
+ elem.nodeType === 9 ?
+ elem.defaultView || elem.parentWindow :
+ false;
+}
+// Create innerHeight, innerWidth, height, width, outerHeight and outerWidth methods
+jQuery.each( { Height: "height", Width: "width" }, function( name, type ) {
+ jQuery.each( { padding: "inner" + name, content: type, "": "outer" + name }, function( defaultExtra, funcName ) {
+ // margin is only for outerHeight, outerWidth
+ jQuery.fn[ funcName ] = function( margin, value ) {
+ var chainable = arguments.length && ( defaultExtra || typeof margin !== "boolean" ),
+ extra = defaultExtra || ( margin === true || value === true ? "margin" : "border" );
+
+ return jQuery.access( this, function( elem, type, value ) {
+ var doc;
+
+ if ( jQuery.isWindow( elem ) ) {
+ // As of 5/8/2012 this will yield incorrect results for Mobile Safari, but there
+ // isn't a whole lot we can do. See pull request at this URL for discussion:
+ // https://github.com/jquery/jquery/pull/764
+ return elem.document.documentElement[ "client" + name ];
+ }
+
+ // Get document width or height
+ if ( elem.nodeType === 9 ) {
+ doc = elem.documentElement;
+
+ // Either scroll[Width/Height] or offset[Width/Height] or client[Width/Height], whichever is greatest
+ // unfortunately, this causes bug #3838 in IE6/8 only, but there is currently no good, small way to fix it.
+ return Math.max(
+ elem.body[ "scroll" + name ], doc[ "scroll" + name ],
+ elem.body[ "offset" + name ], doc[ "offset" + name ],
+ doc[ "client" + name ]
+ );
+ }
+
+ return value === undefined ?
+ // Get width or height on the element, requesting but not forcing parseFloat
+ jQuery.css( elem, type, extra ) :
+
+ // Set width or height on the element
+ jQuery.style( elem, type, value, extra );
+ }, type, chainable ? margin : undefined, chainable, null );
+ };
+ });
+});
+// Limit scope pollution from any deprecated API
+// (function() {
+
+// The number of elements contained in the matched element set
+jQuery.fn.size = function() {
+ return this.length;
+};
+
+jQuery.fn.andSelf = jQuery.fn.addBack;
+
+// })();
+if ( typeof module === "object" && module && typeof module.exports === "object" ) {
+ // Expose jQuery as module.exports in loaders that implement the Node
+ // module pattern (including browserify). Do not create the global, since
+ // the user will be storing it themselves locally, and globals are frowned
+ // upon in the Node module world.
+ module.exports = jQuery;
+} else {
+ // Otherwise expose jQuery to the global object as usual
+ window.jQuery = window.$ = jQuery;
+
+ // Register as a named AMD module, since jQuery can be concatenated with other
+ // files that may use define, but not via a proper concatenation script that
+ // understands anonymous AMD modules. A named AMD is safest and most robust
+ // way to register. Lowercase jquery is used because AMD module names are
+ // derived from file names, and jQuery is normally delivered in a lowercase
+ // file name. Do this after creating the global so that if an AMD module wants
+ // to call noConflict to hide this version of jQuery, it will work.
+ if ( typeof define === "function" && define.amd ) {
+ define( "jquery", [], function () { return jQuery; } );
+ }
+}
+
+})( window );
A => static/jquery-1.10.2.min.js +6 -0
@@ 0,0 1,6 @@
+/*! jQuery v1.10.2 | (c) 2005, 2013 jQuery Foundation, Inc. | jquery.org/license
+//@ sourceMappingURL=jquery-1.10.2.min.map
+*/
+(function(e,t){var n,r,i=typeof t,o=e.location,a=e.document,s=a.documentElement,l=e.jQuery,u=e.$,c={},p=[],f="1.10.2",d=p.concat,h=p.push,g=p.slice,m=p.indexOf,y=c.toString,v=c.hasOwnProperty,b=f.trim,x=function(e,t){return new x.fn.init(e,t,r)},w=/[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/.source,T=/\S+/g,C=/^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g,N=/^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]*))$/,k=/^<(\w+)\s*\/?>(?:<\/\1>|)$/,E=/^[\],:{}\s]*$/,S=/(?:^|:|,)(?:\s*\[)+/g,A=/\\(?:["\\\/bfnrt]|u[\da-fA-F]{4})/g,j=/"[^"\\\r\n]*"|true|false|null|-?(?:\d+\.|)\d+(?:[eE][+-]?\d+|)/g,D=/^-ms-/,L=/-([\da-z])/gi,H=function(e,t){return t.toUpperCase()},q=function(e){(a.addEventListener||"load"===e.type||"complete"===a.readyState)&&(_(),x.ready())},_=function(){a.addEventListener?(a.removeEventListener("DOMContentLoaded",q,!1),e.removeEventListener("load",q,!1)):(a.detachEvent("onreadystatechange",q),e.detachEvent("onload",q))};x.fn=x.prototype={jquery:f,constructor:x,init:function(e,n,r){var i,o;if(!e)return 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A => static/js.js +108 -0
@@ 0,0 1,108 @@
+var get_ws_address = function() { return "ws://" + window.location.host + "/ws" };
+
+var MetronomeConn = function() {
+ var that = this;
+
+ _.extend(that, Backbone.Events);
+
+ that.open = function(addr) {
+ that.ws = new WebSocket(addr);
+ that.ws.onopen = function(e) { that.trigger("open", e) };
+ that.ws.onerror = function(e) { that.trigger("error", e) };
+ that.ws.onclose = function(e) { that.trigger("close", e) };
+ that.ws.onmessage = function(e) { that.trigger("data", e) };
+ };
+
+ that.sub = function(path, dosub) {
+ if (dosub === undefined) {
+ dosub = true;
+ }
+ that.sendobj({subscribe: dosub, path: path});
+ };
+
+ that.unsub = function(path) {
+ that.sub(path, false);
+ };
+
+ that.sendobj = function(obj) {
+ that.ws.send(JSON.stringify(obj))
+ };
+};
+
+var LinkWidget = Backbone.View.extend({
+ template: _.template("<% _.each(links, function(link) { %> <li><a>/<%- link %></a></li> <% }); %>"),
+ events: {
+ "click li a": "linkclicked",
+ },
+ initialize: function() {
+ this.listenTo(this.model, "change:links", this.render);
+ },
+ linkclicked: function(e) {
+ var url = e.target.text;
+ this.model.setCurrent(url);
+ },
+ render: function() {
+ this.el.innerHTML = this.template(this.model.attributes);
+ return this;
+ },
+});
+
+var DocWidget = Backbone.View.extend({
+ template: _.template("<%= document %>"),
+ initialize: function() {
+ this.listenTo(this.model, "change:document", this.render);
+ },
+ render: function() {
+ this.el.innerHTML = this.template(this.model.attributes);
+ return this;
+ },
+});
+
+var Model = Backbone.Model.extend({
+ setCurrent: function(path) {
+ this.get('subscriptions').forEach(function(oldpath) {
+ this.get('conn').unsub(oldpath);
+ }, this);
+ this.set('subscriptions', [path]);
+ this.get('conn').sub(path);
+ },
+});
+
+$(document).ready(function() {
+ var conn = new MetronomeConn();
+
+ conn.on('open', function() {
+ conn.sub('/');
+ })
+
+ conn.on('close', function() {
+ console.log('fuck!');
+ })
+
+ conn.on('data', function(e) {
+ console.log(e);
+
+ var data = JSON.parse(e.data);
+ if (data.Path == "/") {
+ links.model.set('links', data.Payload);
+ } else {
+ doc.model.set('document', data.Payload);
+ }
+ })
+
+ var model = new Model({
+ conn: conn,
+ subscriptions: [],
+ });
+ var links = new LinkWidget({
+ model: model,
+ el: document.getElementById('links'),
+ });
+ var doc = new DocWidget({
+ model: model,
+ el: document.getElementById('doc'),
+ });
+
+ conn.open(get_ws_address());
+ console.log('it works!');
+});
A => static/underscore-min.js +6 -0
@@ 0,0 1,6 @@
+// Underscore.js 1.5.2
+// http://underscorejs.org
+// (c) 2009-2013 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+// Underscore may be freely distributed under the MIT license.
+(function(){var n=this,t=n._,r={},e=Array.prototype,u=Object.prototype,i=Function.prototype,a=e.push,o=e.slice,c=e.concat,l=u.toString,f=u.hasOwnProperty,s=e.forEach,p=e.map,h=e.reduce,v=e.reduceRight,g=e.filter,d=e.every,m=e.some,y=e.indexOf,b=e.lastIndexOf,x=Array.isArray,w=Object.keys,_=i.bind,j=function(n){return n instanceof j?n:this instanceof j?(this._wrapped=n,void 0):new j(n)};"undefined"!=typeof exports?("undefined"!=typeof module&&module.exports&&(exports=module.exports=j),exports._=j):n._=j,j.VERSION="1.5.2";var A=j.each=j.forEach=function(n,t,e){if(null!=n)if(s&&n.forEach===s)n.forEach(t,e);else if(n.length===+n.length){for(var u=0,i=n.length;i>u;u++)if(t.call(e,n[u],u,n)===r)return}else for(var a=j.keys(n),u=0,i=a.length;i>u;u++)if(t.call(e,n[a[u]],a[u],n)===r)return};j.map=j.collect=function(n,t,r){var e=[];return null==n?e:p&&n.map===p?n.map(t,r):(A(n,function(n,u,i){e.push(t.call(r,n,u,i))}),e)};var E="Reduce of empty array with no initial 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+//# sourceMappingURL=underscore-min.map
No newline at end of file
A => static/underscore.js +1276 -0
@@ 0,0 1,1276 @@
+// Underscore.js 1.5.2
+// http://underscorejs.org
+// (c) 2009-2013 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+// Underscore may be freely distributed under the MIT license.
+
+(function() {
+
+ // Baseline setup
+ // --------------
+
+ // Establish the root object, `window` in the browser, or `exports` on the server.
+ var root = this;
+
+ // Save the previous value of the `_` variable.
+ var previousUnderscore = root._;
+
+ // Establish the object that gets returned to break out of a loop iteration.
+ var breaker = {};
+
+ // Save bytes in the minified (but not gzipped) version:
+ var ArrayProto = Array.prototype, ObjProto = Object.prototype, FuncProto = Function.prototype;
+
+ // Create quick reference variables for speed access to core prototypes.
+ var
+ push = ArrayProto.push,
+ slice = ArrayProto.slice,
+ concat = ArrayProto.concat,
+ toString = ObjProto.toString,
+ hasOwnProperty = ObjProto.hasOwnProperty;
+
+ // All **ECMAScript 5** native function implementations that we hope to use
+ // are declared here.
+ var
+ nativeForEach = ArrayProto.forEach,
+ nativeMap = ArrayProto.map,
+ nativeReduce = ArrayProto.reduce,
+ nativeReduceRight = ArrayProto.reduceRight,
+ nativeFilter = ArrayProto.filter,
+ nativeEvery = ArrayProto.every,
+ nativeSome = ArrayProto.some,
+ nativeIndexOf = ArrayProto.indexOf,
+ nativeLastIndexOf = ArrayProto.lastIndexOf,
+ nativeIsArray = Array.isArray,
+ nativeKeys = Object.keys,
+ nativeBind = FuncProto.bind;
+
+ // Create a safe reference to the Underscore object for use below.
+ var _ = function(obj) {
+ if (obj instanceof _) return obj;
+ if (!(this instanceof _)) return new _(obj);
+ this._wrapped = obj;
+ };
+
+ // Export the Underscore object for **Node.js**, with
+ // backwards-compatibility for the old `require()` API. If we're in
+ // the browser, add `_` as a global object via a string identifier,
+ // for Closure Compiler "advanced" mode.
+ if (typeof exports !== 'undefined') {
+ if (typeof module !== 'undefined' && module.exports) {
+ exports = module.exports = _;
+ }
+ exports._ = _;
+ } else {
+ root._ = _;
+ }
+
+ // Current version.
+ _.VERSION = '1.5.2';
+
+ // Collection Functions
+ // --------------------
+
+ // The cornerstone, an `each` implementation, aka `forEach`.
+ // Handles objects with the built-in `forEach`, arrays, and raw objects.
+ // Delegates to **ECMAScript 5**'s native `forEach` if available.
+ var each = _.each = _.forEach = function(obj, iterator, context) {
+ if (obj == null) return;
+ if (nativeForEach && obj.forEach === nativeForEach) {
+ obj.forEach(iterator, context);
+ } else if (obj.length === +obj.length) {
+ for (var i = 0, length = obj.length; i < length; i++) {
+ if (iterator.call(context, obj[i], i, obj) === breaker) return;
+ }
+ } else {
+ var keys = _.keys(obj);
+ for (var i = 0, length = keys.length; i < length; i++) {
+ if (iterator.call(context, obj[keys[i]], keys[i], obj) === breaker) return;
+ }
+ }
+ };
+
+ // Return the results of applying the iterator to each element.
+ // Delegates to **ECMAScript 5**'s native `map` if available.
+ _.map = _.collect = function(obj, iterator, context) {
+ var results = [];
+ if (obj == null) return results;
+ if (nativeMap && obj.map === nativeMap) return obj.map(iterator, context);
+ each(obj, function(value, index, list) {
+ results.push(iterator.call(context, value, index, list));
+ });
+ return results;
+ };
+
+ var reduceError = 'Reduce of empty array with no initial value';
+
+ // **Reduce** builds up a single result from a list of values, aka `inject`,
+ // or `foldl`. Delegates to **ECMAScript 5**'s native `reduce` if available.
+ _.reduce = _.foldl = _.inject = function(obj, iterator, memo, context) {
+ var initial = arguments.length > 2;
+ if (obj == null) obj = [];
+ if (nativeReduce && obj.reduce === nativeReduce) {
+ if (context) iterator = _.bind(iterator, context);
+ return initial ? obj.reduce(iterator, memo) : obj.reduce(iterator);
+ }
+ each(obj, function(value, index, list) {
+ if (!initial) {
+ memo = value;
+ initial = true;
+ } else {
+ memo = iterator.call(context, memo, value, index, list);
+ }
+ });
+ if (!initial) throw new TypeError(reduceError);
+ return memo;
+ };
+
+ // The right-associative version of reduce, also known as `foldr`.
+ // Delegates to **ECMAScript 5**'s native `reduceRight` if available.
+ _.reduceRight = _.foldr = function(obj, iterator, memo, context) {
+ var initial = arguments.length > 2;
+ if (obj == null) obj = [];
+ if (nativeReduceRight && obj.reduceRight === nativeReduceRight) {
+ if (context) iterator = _.bind(iterator, context);
+ return initial ? obj.reduceRight(iterator, memo) : obj.reduceRight(iterator);
+ }
+ var length = obj.length;
+ if (length !== +length) {
+ var keys = _.keys(obj);
+ length = keys.length;
+ }
+ each(obj, function(value, index, list) {
+ index = keys ? keys[--length] : --length;
+ if (!initial) {
+ memo = obj[index];
+ initial = true;
+ } else {
+ memo = iterator.call(context, memo, obj[index], index, list);
+ }
+ });
+ if (!initial) throw new TypeError(reduceError);
+ return memo;
+ };
+
+ // Return the first value which passes a truth test. Aliased as `detect`.
+ _.find = _.detect = function(obj, iterator, context) {
+ var result;
+ any(obj, function(value, index, list) {
+ if (iterator.call(context, value, index, list)) {
+ result = value;
+ return true;
+ }
+ });
+ return result;
+ };
+
+ // Return all the elements that pass a truth test.
+ // Delegates to **ECMAScript 5**'s native `filter` if available.
+ // Aliased as `select`.
+ _.filter = _.select = function(obj, iterator, context) {
+ var results = [];
+ if (obj == null) return results;
+ if (nativeFilter && obj.filter === nativeFilter) return obj.filter(iterator, context);
+ each(obj, function(value, index, list) {
+ if (iterator.call(context, value, index, list)) results.push(value);
+ });
+ return results;
+ };
+
+ // Return all the elements for which a truth test fails.
+ _.reject = function(obj, iterator, context) {
+ return _.filter(obj, function(value, index, list) {
+ return !iterator.call(context, value, index, list);
+ }, context);
+ };
+
+ // Determine whether all of the elements match a truth test.
+ // Delegates to **ECMAScript 5**'s native `every` if available.
+ // Aliased as `all`.
+ _.every = _.all = function(obj, iterator, context) {
+ iterator || (iterator = _.identity);
+ var result = true;
+ if (obj == null) return result;
+ if (nativeEvery && obj.every === nativeEvery) return obj.every(iterator, context);
+ each(obj, function(value, index, list) {
+ if (!(result = result && iterator.call(context, value, index, list))) return breaker;
+ });
+ return !!result;
+ };
+
+ // Determine if at least one element in the object matches a truth test.
+ // Delegates to **ECMAScript 5**'s native `some` if available.
+ // Aliased as `any`.
+ var any = _.some = _.any = function(obj, iterator, context) {
+ iterator || (iterator = _.identity);
+ var result = false;
+ if (obj == null) return result;
+ if (nativeSome && obj.some === nativeSome) return obj.some(iterator, context);
+ each(obj, function(value, index, list) {
+ if (result || (result = iterator.call(context, value, index, list))) return breaker;
+ });
+ return !!result;
+ };
+
+ // Determine if the array or object contains a given value (using `===`).
+ // Aliased as `include`.
+ _.contains = _.include = function(obj, target) {
+ if (obj == null) return false;
+ if (nativeIndexOf && obj.indexOf === nativeIndexOf) return obj.indexOf(target) != -1;
+ return any(obj, function(value) {
+ return value === target;
+ });
+ };
+
+ // Invoke a method (with arguments) on every item in a collection.
+ _.invoke = function(obj, method) {
+ var args = slice.call(arguments, 2);
+ var isFunc = _.isFunction(method);
+ return _.map(obj, function(value) {
+ return (isFunc ? method : value[method]).apply(value, args);
+ });
+ };
+
+ // Convenience version of a common use case of `map`: fetching a property.
+ _.pluck = function(obj, key) {
+ return _.map(obj, function(value){ return value[key]; });
+ };
+
+ // Convenience version of a common use case of `filter`: selecting only objects
+ // containing specific `key:value` pairs.
+ _.where = function(obj, attrs, first) {
+ if (_.isEmpty(attrs)) return first ? void 0 : [];
+ return _[first ? 'find' : 'filter'](obj, function(value) {
+ for (var key in attrs) {
+ if (attrs[key] !== value[key]) return false;
+ }
+ return true;
+ });
+ };
+
+ // Convenience version of a common use case of `find`: getting the first object
+ // containing specific `key:value` pairs.
+ _.findWhere = function(obj, attrs) {
+ return _.where(obj, attrs, true);
+ };
+
+ // Return the maximum element or (element-based computation).
+ // Can't optimize arrays of integers longer than 65,535 elements.
+ // See [WebKit Bug 80797](https://bugs.webkit.org/show_bug.cgi?id=80797)
+ _.max = function(obj, iterator, context) {
+ if (!iterator && _.isArray(obj) && obj[0] === +obj[0] && obj.length < 65535) {
+ return Math.max.apply(Math, obj);
+ }
+ if (!iterator && _.isEmpty(obj)) return -Infinity;
+ var result = {computed : -Infinity, value: -Infinity};
+ each(obj, function(value, index, list) {
+ var computed = iterator ? iterator.call(context, value, index, list) : value;
+ computed > result.computed && (result = {value : value, computed : computed});
+ });
+ return result.value;
+ };
+
+ // Return the minimum element (or element-based computation).
+ _.min = function(obj, iterator, context) {
+ if (!iterator && _.isArray(obj) && obj[0] === +obj[0] && obj.length < 65535) {
+ return Math.min.apply(Math, obj);
+ }
+ if (!iterator && _.isEmpty(obj)) return Infinity;
+ var result = {computed : Infinity, value: Infinity};
+ each(obj, function(value, index, list) {
+ var computed = iterator ? iterator.call(context, value, index, list) : value;
+ computed < result.computed && (result = {value : value, computed : computed});
+ });
+ return result.value;
+ };
+
+ // Shuffle an array, using the modern version of the
+ // [Fisher-Yates shuffle](http://en.wikipedia.org/wiki/Fisher–Yates_shuffle).
+ _.shuffle = function(obj) {
+ var rand;
+ var index = 0;
+ var shuffled = [];
+ each(obj, function(value) {
+ rand = _.random(index++);
+ shuffled[index - 1] = shuffled[rand];
+ shuffled[rand] = value;
+ });
+ return shuffled;
+ };
+
+ // Sample **n** random values from an array.
+ // If **n** is not specified, returns a single random element from the array.
+ // The internal `guard` argument allows it to work with `map`.
+ _.sample = function(obj, n, guard) {
+ if (arguments.length < 2 || guard) {
+ return obj[_.random(obj.length - 1)];
+ }
+ return _.shuffle(obj).slice(0, Math.max(0, n));
+ };
+
+ // An internal function to generate lookup iterators.
+ var lookupIterator = function(value) {
+ return _.isFunction(value) ? value : function(obj){ return obj[value]; };
+ };
+
+ // Sort the object's values by a criterion produced by an iterator.
+ _.sortBy = function(obj, value, context) {
+ var iterator = lookupIterator(value);
+ return _.pluck(_.map(obj, function(value, index, list) {
+ return {
+ value: value,
+ index: index,
+ criteria: iterator.call(context, value, index, list)
+ };
+ }).sort(function(left, right) {
+ var a = left.criteria;
+ var b = right.criteria;
+ if (a !== b) {
+ if (a > b || a === void 0) return 1;
+ if (a < b || b === void 0) return -1;
+ }
+ return left.index - right.index;
+ }), 'value');
+ };
+
+ // An internal function used for aggregate "group by" operations.
+ var group = function(behavior) {
+ return function(obj, value, context) {
+ var result = {};
+ var iterator = value == null ? _.identity : lookupIterator(value);
+ each(obj, function(value, index) {
+ var key = iterator.call(context, value, index, obj);
+ behavior(result, key, value);
+ });
+ return result;
+ };
+ };
+
+ // Groups the object's values by a criterion. Pass either a string attribute
+ // to group by, or a function that returns the criterion.
+ _.groupBy = group(function(result, key, value) {
+ (_.has(result, key) ? result[key] : (result[key] = [])).push(value);
+ });
+
+ // Indexes the object's values by a criterion, similar to `groupBy`, but for
+ // when you know that your index values will be unique.
+ _.indexBy = group(function(result, key, value) {
+ result[key] = value;
+ });
+
+ // Counts instances of an object that group by a certain criterion. Pass
+ // either a string attribute to count by, or a function that returns the
+ // criterion.
+ _.countBy = group(function(result, key) {
+ _.has(result, key) ? result[key]++ : result[key] = 1;
+ });
+
+ // Use a comparator function to figure out the smallest index at which
+ // an object should be inserted so as to maintain order. Uses binary search.
+ _.sortedIndex = function(array, obj, iterator, context) {
+ iterator = iterator == null ? _.identity : lookupIterator(iterator);
+ var value = iterator.call(context, obj);
+ var low = 0, high = array.length;
+ while (low < high) {
+ var mid = (low + high) >>> 1;
+ iterator.call(context, array[mid]) < value ? low = mid + 1 : high = mid;
+ }
+ return low;
+ };
+
+ // Safely create a real, live array from anything iterable.
+ _.toArray = function(obj) {
+ if (!obj) return [];
+ if (_.isArray(obj)) return slice.call(obj);
+ if (obj.length === +obj.length) return _.map(obj, _.identity);
+ return _.values(obj);
+ };
+
+ // Return the number of elements in an object.
+ _.size = function(obj) {
+ if (obj == null) return 0;
+ return (obj.length === +obj.length) ? obj.length : _.keys(obj).length;
+ };
+
+ // Array Functions
+ // ---------------
+
+ // Get the first element of an array. Passing **n** will return the first N
+ // values in the array. Aliased as `head` and `take`. The **guard** check
+ // allows it to work with `_.map`.
+ _.first = _.head = _.take = function(array, n, guard) {
+ if (array == null) return void 0;
+ return (n == null) || guard ? array[0] : slice.call(array, 0, n);
+ };
+
+ // Returns everything but the last entry of the array. Especially useful on
+ // the arguments object. Passing **n** will return all the values in
+ // the array, excluding the last N. The **guard** check allows it to work with
+ // `_.map`.
+ _.initial = function(array, n, guard) {
+ return slice.call(array, 0, array.length - ((n == null) || guard ? 1 : n));
+ };
+
+ // Get the last element of an array. Passing **n** will return the last N
+ // values in the array. The **guard** check allows it to work with `_.map`.
+ _.last = function(array, n, guard) {
+ if (array == null) return void 0;
+ if ((n == null) || guard) {
+ return array[array.length - 1];
+ } else {
+ return slice.call(array, Math.max(array.length - n, 0));
+ }
+ };
+
+ // Returns everything but the first entry of the array. Aliased as `tail` and `drop`.
+ // Especially useful on the arguments object. Passing an **n** will return
+ // the rest N values in the array. The **guard**
+ // check allows it to work with `_.map`.
+ _.rest = _.tail = _.drop = function(array, n, guard) {
+ return slice.call(array, (n == null) || guard ? 1 : n);
+ };
+
+ // Trim out all falsy values from an array.
+ _.compact = function(array) {
+ return _.filter(array, _.identity);
+ };
+
+ // Internal implementation of a recursive `flatten` function.
+ var flatten = function(input, shallow, output) {
+ if (shallow && _.every(input, _.isArray)) {
+ return concat.apply(output, input);
+ }
+ each(input, function(value) {
+ if (_.isArray(value) || _.isArguments(value)) {
+ shallow ? push.apply(output, value) : flatten(value, shallow, output);
+ } else {
+ output.push(value);
+ }
+ });
+ return output;
+ };
+
+ // Flatten out an array, either recursively (by default), or just one level.
+ _.flatten = function(array, shallow) {
+ return flatten(array, shallow, []);
+ };
+
+ // Return a version of the array that does not contain the specified value(s).
+ _.without = function(array) {
+ return _.difference(array, slice.call(arguments, 1));
+ };
+
+ // Produce a duplicate-free version of the array. If the array has already
+ // been sorted, you have the option of using a faster algorithm.
+ // Aliased as `unique`.
+ _.uniq = _.unique = function(array, isSorted, iterator, context) {
+ if (_.isFunction(isSorted)) {
+ context = iterator;
+ iterator = isSorted;
+ isSorted = false;
+ }
+ var initial = iterator ? _.map(array, iterator, context) : array;
+ var results = [];
+ var seen = [];
+ each(initial, function(value, index) {
+ if (isSorted ? (!index || seen[seen.length - 1] !== value) : !_.contains(seen, value)) {
+ seen.push(value);
+ results.push(array[index]);
+ }
+ });
+ return results;
+ };
+
+ // Produce an array that contains the union: each distinct element from all of
+ // the passed-in arrays.
+ _.union = function() {
+ return _.uniq(_.flatten(arguments, true));
+ };
+
+ // Produce an array that contains every item shared between all the
+ // passed-in arrays.
+ _.intersection = function(array) {
+ var rest = slice.call(arguments, 1);
+ return _.filter(_.uniq(array), function(item) {
+ return _.every(rest, function(other) {
+ return _.indexOf(other, item) >= 0;
+ });
+ });
+ };
+
+ // Take the difference between one array and a number of other arrays.
+ // Only the elements present in just the first array will remain.
+ _.difference = function(array) {
+ var rest = concat.apply(ArrayProto, slice.call(arguments, 1));
+ return _.filter(array, function(value){ return !_.contains(rest, value); });
+ };
+
+ // Zip together multiple lists into a single array -- elements that share
+ // an index go together.
+ _.zip = function() {
+ var length = _.max(_.pluck(arguments, "length").concat(0));
+ var results = new Array(length);
+ for (var i = 0; i < length; i++) {
+ results[i] = _.pluck(arguments, '' + i);
+ }
+ return results;
+ };
+
+ // Converts lists into objects. Pass either a single array of `[key, value]`
+ // pairs, or two parallel arrays of the same length -- one of keys, and one of
+ // the corresponding values.
+ _.object = function(list, values) {
+ if (list == null) return {};
+ var result = {};
+ for (var i = 0, length = list.length; i < length; i++) {
+ if (values) {
+ result[list[i]] = values[i];
+ } else {
+ result[list[i][0]] = list[i][1];
+ }
+ }
+ return result;
+ };
+
+ // If the browser doesn't supply us with indexOf (I'm looking at you, **MSIE**),
+ // we need this function. Return the position of the first occurrence of an
+ // item in an array, or -1 if the item is not included in the array.
+ // Delegates to **ECMAScript 5**'s native `indexOf` if available.
+ // If the array is large and already in sort order, pass `true`
+ // for **isSorted** to use binary search.
+ _.indexOf = function(array, item, isSorted) {
+ if (array == null) return -1;
+ var i = 0, length = array.length;
+ if (isSorted) {
+ if (typeof isSorted == 'number') {
+ i = (isSorted < 0 ? Math.max(0, length + isSorted) : isSorted);
+ } else {
+ i = _.sortedIndex(array, item);
+ return array[i] === item ? i : -1;
+ }
+ }
+ if (nativeIndexOf && array.indexOf === nativeIndexOf) return array.indexOf(item, isSorted);
+ for (; i < length; i++) if (array[i] === item) return i;
+ return -1;
+ };
+
+ // Delegates to **ECMAScript 5**'s native `lastIndexOf` if available.
+ _.lastIndexOf = function(array, item, from) {
+ if (array == null) return -1;
+ var hasIndex = from != null;
+ if (nativeLastIndexOf && array.lastIndexOf === nativeLastIndexOf) {
+ return hasIndex ? array.lastIndexOf(item, from) : array.lastIndexOf(item);
+ }
+ var i = (hasIndex ? from : array.length);
+ while (i--) if (array[i] === item) return i;
+ return -1;
+ };
+
+ // Generate an integer Array containing an arithmetic progression. A port of
+ // the native Python `range()` function. See
+ // [the Python documentation](http://docs.python.org/library/functions.html#range).
+ _.range = function(start, stop, step) {
+ if (arguments.length <= 1) {
+ stop = start || 0;
+ start = 0;
+ }
+ step = arguments[2] || 1;
+
+ var length = Math.max(Math.ceil((stop - start) / step), 0);
+ var idx = 0;
+ var range = new Array(length);
+
+ while(idx < length) {
+ range[idx++] = start;
+ start += step;
+ }
+
+ return range;
+ };
+
+ // Function (ahem) Functions
+ // ------------------
+
+ // Reusable constructor function for prototype setting.
+ var ctor = function(){};
+
+ // Create a function bound to a given object (assigning `this`, and arguments,
+ // optionally). Delegates to **ECMAScript 5**'s native `Function.bind` if
+ // available.
+ _.bind = function(func, context) {
+ var args, bound;
+ if (nativeBind && func.bind === nativeBind) return nativeBind.apply(func, slice.call(arguments, 1));
+ if (!_.isFunction(func)) throw new TypeError;
+ args = slice.call(arguments, 2);
+ return bound = function() {
+ if (!(this instanceof bound)) return func.apply(context, args.concat(slice.call(arguments)));
+ ctor.prototype = func.prototype;
+ var self = new ctor;
+ ctor.prototype = null;
+ var result = func.apply(self, args.concat(slice.call(arguments)));
+ if (Object(result) === result) return result;
+ return self;
+ };
+ };
+
+ // Partially apply a function by creating a version that has had some of its
+ // arguments pre-filled, without changing its dynamic `this` context.
+ _.partial = function(func) {
+ var args = slice.call(arguments, 1);
+ return function() {
+ return func.apply(this, args.concat(slice.call(arguments)));
+ };
+ };
+
+ // Bind all of an object's methods to that object. Useful for ensuring that
+ // all callbacks defined on an object belong to it.
+ _.bindAll = function(obj) {
+ var funcs = slice.call(arguments, 1);
+ if (funcs.length === 0) throw new Error("bindAll must be passed function names");
+ each(funcs, function(f) { obj[f] = _.bind(obj[f], obj); });
+ return obj;
+ };
+
+ // Memoize an expensive function by storing its results.
+ _.memoize = function(func, hasher) {
+ var memo = {};
+ hasher || (hasher = _.identity);
+ return function() {
+ var key = hasher.apply(this, arguments);
+ return _.has(memo, key) ? memo[key] : (memo[key] = func.apply(this, arguments));
+ };
+ };
+
+ // Delays a function for the given number of milliseconds, and then calls
+ // it with the arguments supplied.
+ _.delay = function(func, wait) {
+ var args = slice.call(arguments, 2);
+ return setTimeout(function(){ return func.apply(null, args); }, wait);
+ };
+
+ // Defers a function, scheduling it to run after the current call stack has
+ // cleared.
+ _.defer = function(func) {
+ return _.delay.apply(_, [func, 1].concat(slice.call(arguments, 1)));
+ };
+
+ // Returns a function, that, when invoked, will only be triggered at most once
+ // during a given window of time. Normally, the throttled function will run
+ // as much as it can, without ever going more than once per `wait` duration;
+ // but if you'd like to disable the execution on the leading edge, pass
+ // `{leading: false}`. To disable execution on the trailing edge, ditto.
+ _.throttle = function(func, wait, options) {
+ var context, args, result;
+ var timeout = null;
+ var previous = 0;
+ options || (options = {});
+ var later = function() {
+ previous = options.leading === false ? 0 : new Date;
+ timeout = null;
+ result = func.apply(context, args);
+ };
+ return function() {
+ var now = new Date;
+ if (!previous && options.leading === false) previous = now;
+ var remaining = wait - (now - previous);
+ context = this;
+ args = arguments;
+ if (remaining <= 0) {
+ clearTimeout(timeout);
+ timeout = null;
+ previous = now;
+ result = func.apply(context, args);
+ } else if (!timeout && options.trailing !== false) {
+ timeout = setTimeout(later, remaining);
+ }
+ return result;
+ };
+ };
+
+ // Returns a function, that, as long as it continues to be invoked, will not
+ // be triggered. The function will be called after it stops being called for
+ // N milliseconds. If `immediate` is passed, trigger the function on the
+ // leading edge, instead of the trailing.
+ _.debounce = function(func, wait, immediate) {
+ var timeout, args, context, timestamp, result;
+ return function() {
+ context = this;
+ args = arguments;
+ timestamp = new Date();
+ var later = function() {
+ var last = (new Date()) - timestamp;
+ if (last < wait) {
+ timeout = setTimeout(later, wait - last);
+ } else {
+ timeout = null;
+ if (!immediate) result = func.apply(context, args);
+ }
+ };
+ var callNow = immediate && !timeout;
+ if (!timeout) {
+ timeout = setTimeout(later, wait);
+ }
+ if (callNow) result = func.apply(context, args);
+ return result;
+ };
+ };
+
+ // Returns a function that will be executed at most one time, no matter how
+ // often you call it. Useful for lazy initialization.
+ _.once = function(func) {
+ var ran = false, memo;
+ return function() {
+ if (ran) return memo;
+ ran = true;
+ memo = func.apply(this, arguments);
+ func = null;
+ return memo;
+ };
+ };
+
+ // Returns the first function passed as an argument to the second,
+ // allowing you to adjust arguments, run code before and after, and
+ // conditionally execute the original function.
+ _.wrap = function(func, wrapper) {
+ return function() {
+ var args = [func];
+ push.apply(args, arguments);
+ return wrapper.apply(this, args);
+ };
+ };
+
+ // Returns a function that is the composition of a list of functions, each
+ // consuming the return value of the function that follows.
+ _.compose = function() {
+ var funcs = arguments;
+ return function() {
+ var args = arguments;
+ for (var i = funcs.length - 1; i >= 0; i--) {
+ args = [funcs[i].apply(this, args)];
+ }
+ return args[0];
+ };
+ };
+
+ // Returns a function that will only be executed after being called N times.
+ _.after = function(times, func) {
+ return function() {
+ if (--times < 1) {
+ return func.apply(this, arguments);
+ }
+ };
+ };
+
+ // Object Functions
+ // ----------------
+
+ // Retrieve the names of an object's properties.
+ // Delegates to **ECMAScript 5**'s native `Object.keys`
+ _.keys = nativeKeys || function(obj) {
+ if (obj !== Object(obj)) throw new TypeError('Invalid object');
+ var keys = [];
+ for (var key in obj) if (_.has(obj, key)) keys.push(key);
+ return keys;
+ };
+
+ // Retrieve the values of an object's properties.
+ _.values = function(obj) {
+ var keys = _.keys(obj);
+ var length = keys.length;
+ var values = new Array(length);
+ for (var i = 0; i < length; i++) {
+ values[i] = obj[keys[i]];
+ }
+ return values;
+ };
+
+ // Convert an object into a list of `[key, value]` pairs.
+ _.pairs = function(obj) {
+ var keys = _.keys(obj);
+ var length = keys.length;
+ var pairs = new Array(length);
+ for (var i = 0; i < length; i++) {
+ pairs[i] = [keys[i], obj[keys[i]]];
+ }
+ return pairs;
+ };
+
+ // Invert the keys and values of an object. The values must be serializable.
+ _.invert = function(obj) {
+ var result = {};
+ var keys = _.keys(obj);
+ for (var i = 0, length = keys.length; i < length; i++) {
+ result[obj[keys[i]]] = keys[i];
+ }
+ return result;
+ };
+
+ // Return a sorted list of the function names available on the object.
+ // Aliased as `methods`
+ _.functions = _.methods = function(obj) {
+ var names = [];
+ for (var key in obj) {
+ if (_.isFunction(obj[key])) names.push(key);
+ }
+ return names.sort();
+ };
+
+ // Extend a given object with all the properties in passed-in object(s).
+ _.extend = function(obj) {
+ each(slice.call(arguments, 1), function(source) {
+ if (source) {
+ for (var prop in source) {
+ obj[prop] = source[prop];
+ }
+ }
+ });
+ return obj;
+ };
+
+ // Return a copy of the object only containing the whitelisted properties.
+ _.pick = function(obj) {
+ var copy = {};
+ var keys = concat.apply(ArrayProto, slice.call(arguments, 1));
+ each(keys, function(key) {
+ if (key in obj) copy[key] = obj[key];
+ });
+ return copy;
+ };
+
+ // Return a copy of the object without the blacklisted properties.
+ _.omit = function(obj) {
+ var copy = {};
+ var keys = concat.apply(ArrayProto, slice.call(arguments, 1));
+ for (var key in obj) {
+ if (!_.contains(keys, key)) copy[key] = obj[key];
+ }
+ return copy;
+ };
+
+ // Fill in a given object with default properties.
+ _.defaults = function(obj) {
+ each(slice.call(arguments, 1), function(source) {
+ if (source) {
+ for (var prop in source) {
+ if (obj[prop] === void 0) obj[prop] = source[prop];
+ }
+ }
+ });
+ return obj;
+ };
+
+ // Create a (shallow-cloned) duplicate of an object.
+ _.clone = function(obj) {
+ if (!_.isObject(obj)) return obj;
+ return _.isArray(obj) ? obj.slice() : _.extend({}, obj);
+ };
+
+ // Invokes interceptor with the obj, and then returns obj.
+ // The primary purpose of this method is to "tap into" a method chain, in
+ // order to perform operations on intermediate results within the chain.
+ _.tap = function(obj, interceptor) {
+ interceptor(obj);
+ return obj;
+ };
+
+ // Internal recursive comparison function for `isEqual`.
+ var eq = function(a, b, aStack, bStack) {
+ // Identical objects are equal. `0 === -0`, but they aren't identical.
+ // See the [Harmony `egal` proposal](http://wiki.ecmascript.org/doku.php?id=harmony:egal).
+ if (a === b) return a !== 0 || 1 / a == 1 / b;
+ // A strict comparison is necessary because `null == undefined`.
+ if (a == null || b == null) return a === b;
+ // Unwrap any wrapped objects.
+ if (a instanceof _) a = a._wrapped;
+ if (b instanceof _) b = b._wrapped;
+ // Compare `[[Class]]` names.
+ var className = toString.call(a);
+ if (className != toString.call(b)) return false;
+ switch (className) {
+ // Strings, numbers, dates, and booleans are compared by value.
+ case '[object String]':
+ // Primitives and their corresponding object wrappers are equivalent; thus, `"5"` is
+ // equivalent to `new String("5")`.
+ return a == String(b);
+ case '[object Number]':
+ // `NaN`s are equivalent, but non-reflexive. An `egal` comparison is performed for
+ // other numeric values.
+ return a != +a ? b != +b : (a == 0 ? 1 / a == 1 / b : a == +b);
+ case '[object Date]':
+ case '[object Boolean]':
+ // Coerce dates and booleans to numeric primitive values. Dates are compared by their
+ // millisecond representations. Note that invalid dates with millisecond representations
+ // of `NaN` are not equivalent.
+ return +a == +b;
+ // RegExps are compared by their source patterns and flags.
+ case '[object RegExp]':
+ return a.source == b.source &&
+ a.global == b.global &&
+ a.multiline == b.multiline &&
+ a.ignoreCase == b.ignoreCase;
+ }
+ if (typeof a != 'object' || typeof b != 'object') return false;
+ // Assume equality for cyclic structures. The algorithm for detecting cyclic
+ // structures is adapted from ES 5.1 section 15.12.3, abstract operation `JO`.
+ var length = aStack.length;
+ while (length--) {
+ // Linear search. Performance is inversely proportional to the number of
+ // unique nested structures.
+ if (aStack[length] == a) return bStack[length] == b;
+ }
+ // Objects with different constructors are not equivalent, but `Object`s
+ // from different frames are.
+ var aCtor = a.constructor, bCtor = b.constructor;
+ if (aCtor !== bCtor && !(_.isFunction(aCtor) && (aCtor instanceof aCtor) &&
+ _.isFunction(bCtor) && (bCtor instanceof bCtor))) {
+ return false;
+ }
+ // Add the first object to the stack of traversed objects.
+ aStack.push(a);
+ bStack.push(b);
+ var size = 0, result = true;
+ // Recursively compare objects and arrays.
+ if (className == '[object Array]') {
+ // Compare array lengths to determine if a deep comparison is necessary.
+ size = a.length;
+ result = size == b.length;
+ if (result) {
+ // Deep compare the contents, ignoring non-numeric properties.
+ while (size--) {
+ if (!(result = eq(a[size], b[size], aStack, bStack))) break;
+ }
+ }
+ } else {
+ // Deep compare objects.
+ for (var key in a) {
+ if (_.has(a, key)) {
+ // Count the expected number of properties.
+ size++;
+ // Deep compare each member.
+ if (!(result = _.has(b, key) && eq(a[key], b[key], aStack, bStack))) break;
+ }
+ }
+ // Ensure that both objects contain the same number of properties.
+ if (result) {
+ for (key in b) {
+ if (_.has(b, key) && !(size--)) break;
+ }
+ result = !size;
+ }
+ }
+ // Remove the first object from the stack of traversed objects.
+ aStack.pop();
+ bStack.pop();
+ return result;
+ };
+
+ // Perform a deep comparison to check if two objects are equal.
+ _.isEqual = function(a, b) {
+ return eq(a, b, [], []);
+ };
+
+ // Is a given array, string, or object empty?
+ // An "empty" object has no enumerable own-properties.
+ _.isEmpty = function(obj) {
+ if (obj == null) return true;
+ if (_.isArray(obj) || _.isString(obj)) return obj.length === 0;
+ for (var key in obj) if (_.has(obj, key)) return false;
+ return true;
+ };
+
+ // Is a given value a DOM element?
+ _.isElement = function(obj) {
+ return !!(obj && obj.nodeType === 1);
+ };
+
+ // Is a given value an array?
+ // Delegates to ECMA5's native Array.isArray
+ _.isArray = nativeIsArray || function(obj) {
+ return toString.call(obj) == '[object Array]';
+ };
+
+ // Is a given variable an object?
+ _.isObject = function(obj) {
+ return obj === Object(obj);
+ };
+
+ // Add some isType methods: isArguments, isFunction, isString, isNumber, isDate, isRegExp.
+ each(['Arguments', 'Function', 'String', 'Number', 'Date', 'RegExp'], function(name) {
+ _['is' + name] = function(obj) {
+ return toString.call(obj) == '[object ' + name + ']';
+ };
+ });
+
+ // Define a fallback version of the method in browsers (ahem, IE), where
+ // there isn't any inspectable "Arguments" type.
+ if (!_.isArguments(arguments)) {
+ _.isArguments = function(obj) {
+ return !!(obj && _.has(obj, 'callee'));
+ };
+ }
+
+ // Optimize `isFunction` if appropriate.
+ if (typeof (/./) !== 'function') {
+ _.isFunction = function(obj) {
+ return typeof obj === 'function';
+ };
+ }
+
+ // Is a given object a finite number?
+ _.isFinite = function(obj) {
+ return isFinite(obj) && !isNaN(parseFloat(obj));
+ };
+
+ // Is the given value `NaN`? (NaN is the only number which does not equal itself).
+ _.isNaN = function(obj) {
+ return _.isNumber(obj) && obj != +obj;
+ };
+
+ // Is a given value a boolean?
+ _.isBoolean = function(obj) {
+ return obj === true || obj === false || toString.call(obj) == '[object Boolean]';
+ };
+
+ // Is a given value equal to null?
+ _.isNull = function(obj) {
+ return obj === null;
+ };
+
+ // Is a given variable undefined?
+ _.isUndefined = function(obj) {
+ return obj === void 0;
+ };
+
+ // Shortcut function for checking if an object has a given property directly
+ // on itself (in other words, not on a prototype).
+ _.has = function(obj, key) {
+ return hasOwnProperty.call(obj, key);
+ };
+
+ // Utility Functions
+ // -----------------
+
+ // Run Underscore.js in *noConflict* mode, returning the `_` variable to its
+ // previous owner. Returns a reference to the Underscore object.
+ _.noConflict = function() {
+ root._ = previousUnderscore;
+ return this;
+ };
+
+ // Keep the identity function around for default iterators.
+ _.identity = function(value) {
+ return value;
+ };
+
+ // Run a function **n** times.
+ _.times = function(n, iterator, context) {
+ var accum = Array(Math.max(0, n));
+ for (var i = 0; i < n; i++) accum[i] = iterator.call(context, i);
+ return accum;
+ };
+
+ // Return a random integer between min and max (inclusive).
+ _.random = function(min, max) {
+ if (max == null) {
+ max = min;
+ min = 0;
+ }
+ return min + Math.floor(Math.random() * (max - min + 1));
+ };
+
+ // List of HTML entities for escaping.
+ var entityMap = {
+ escape: {
+ '&': '&',
+ '<': '<',
+ '>': '>',
+ '"': '"',
+ "'": '''
+ }
+ };
+ entityMap.unescape = _.invert(entityMap.escape);
+
+ // Regexes containing the keys and values listed immediately above.
+ var entityRegexes = {
+ escape: new RegExp('[' + _.keys(entityMap.escape).join('') + ']', 'g'),
+ unescape: new RegExp('(' + _.keys(entityMap.unescape).join('|') + ')', 'g')
+ };
+
+ // Functions for escaping and unescaping strings to/from HTML interpolation.
+ _.each(['escape', 'unescape'], function(method) {
+ _[method] = function(string) {
+ if (string == null) return '';
+ return ('' + string).replace(entityRegexes[method], function(match) {
+ return entityMap[method][match];
+ });
+ };
+ });
+
+ // If the value of the named `property` is a function then invoke it with the
+ // `object` as context; otherwise, return it.
+ _.result = function(object, property) {
+ if (object == null) return void 0;
+ var value = object[property];
+ return _.isFunction(value) ? value.call(object) : value;
+ };
+
+ // Add your own custom functions to the Underscore object.
+ _.mixin = function(obj) {
+ each(_.functions(obj), function(name) {
+ var func = _[name] = obj[name];
+ _.prototype[name] = function() {
+ var args = [this._wrapped];
+ push.apply(args, arguments);
+ return result.call(this, func.apply(_, args));
+ };
+ });
+ };
+
+ // Generate a unique integer id (unique within the entire client session).
+ // Useful for temporary DOM ids.
+ var idCounter = 0;
+ _.uniqueId = function(prefix) {
+ var id = ++idCounter + '';
+ return prefix ? prefix + id : id;
+ };
+
+ // By default, Underscore uses ERB-style template delimiters, change the
+ // following template settings to use alternative delimiters.
+ _.templateSettings = {
+ evaluate : /<%([\s\S]+?)%>/g,
+ interpolate : /<%=([\s\S]+?)%>/g,
+ escape : /<%-([\s\S]+?)%>/g
+ };
+
+ // When customizing `templateSettings`, if you don't want to define an
+ // interpolation, evaluation or escaping regex, we need one that is
+ // guaranteed not to match.
+ var noMatch = /(.)^/;
+
+ // Certain characters need to be escaped so that they can be put into a
+ // string literal.
+ var escapes = {
+ "'": "'",
+ '\\': '\\',
+ '\r': 'r',
+ '\n': 'n',
+ '\t': 't',
+ '\u2028': 'u2028',
+ '\u2029': 'u2029'
+ };
+
+ var escaper = /\\|'|\r|\n|\t|\u2028|\u2029/g;
+
+ // JavaScript micro-templating, similar to John Resig's implementation.
+ // Underscore templating handles arbitrary delimiters, preserves whitespace,
+ // and correctly escapes quotes within interpolated code.
+ _.template = function(text, data, settings) {
+ var render;
+ settings = _.defaults({}, settings, _.templateSettings);
+
+ // Combine delimiters into one regular expression via alternation.
+ var matcher = new RegExp([
+ (settings.escape || noMatch).source,
+ (settings.interpolate || noMatch).source,
+ (settings.evaluate || noMatch).source
+ ].join('|') + '|$', 'g');
+
+ // Compile the template source, escaping string literals appropriately.
+ var index = 0;
+ var source = "__p+='";
+ text.replace(matcher, function(match, escape, interpolate, evaluate, offset) {
+ source += text.slice(index, offset)
+ .replace(escaper, function(match) { return '\\' + escapes[match]; });
+
+ if (escape) {
+ source += "'+\n((__t=(" + escape + "))==null?'':_.escape(__t))+\n'";
+ }
+ if (interpolate) {
+ source += "'+\n((__t=(" + interpolate + "))==null?'':__t)+\n'";
+ }
+ if (evaluate) {
+ source += "';\n" + evaluate + "\n__p+='";
+ }
+ index = offset + match.length;
+ return match;
+ });
+ source += "';\n";
+
+ // If a variable is not specified, place data values in local scope.
+ if (!settings.variable) source = 'with(obj||{}){\n' + source + '}\n';
+
+ source = "var __t,__p='',__j=Array.prototype.join," +
+ "print=function(){__p+=__j.call(arguments,'');};\n" +
+ source + "return __p;\n";
+
+ try {
+ render = new Function(settings.variable || 'obj', '_', source);
+ } catch (e) {
+ e.source = source;
+ throw e;
+ }
+
+ if (data) return render(data, _);
+ var template = function(data) {
+ return render.call(this, data, _);
+ };
+
+ // Provide the compiled function source as a convenience for precompilation.
+ template.source = 'function(' + (settings.variable || 'obj') + '){\n' + source + '}';
+
+ return template;
+ };
+
+ // Add a "chain" function, which will delegate to the wrapper.
+ _.chain = function(obj) {
+ return _(obj).chain();
+ };
+
+ // OOP
+ // ---------------
+ // If Underscore is called as a function, it returns a wrapped object that
+ // can be used OO-style. This wrapper holds altered versions of all the
+ // underscore functions. Wrapped objects may be chained.
+
+ // Helper function to continue chaining intermediate results.
+ var result = function(obj) {
+ return this._chain ? _(obj).chain() : obj;
+ };
+
+ // Add all of the Underscore functions to the wrapper object.
+ _.mixin(_);
+
+ // Add all mutator Array functions to the wrapper.
+ each(['pop', 'push', 'reverse', 'shift', 'sort', 'splice', 'unshift'], function(name) {
+ var method = ArrayProto[name];
+ _.prototype[name] = function() {
+ var obj = this._wrapped;
+ method.apply(obj, arguments);
+ if ((name == 'shift' || name == 'splice') && obj.length === 0) delete obj[0];
+ return result.call(this, obj);
+ };
+ });
+
+ // Add all accessor Array functions to the wrapper.
+ each(['concat', 'join', 'slice'], function(name) {
+ var method = ArrayProto[name];
+ _.prototype[name] = function() {
+ return result.call(this, method.apply(this._wrapped, arguments));
+ };
+ });
+
+ _.extend(_.prototype, {
+
+ // Start chaining a wrapped Underscore object.
+ chain: function() {
+ this._chain = true;
+ return this;
+ },
+
+ // Extracts the result from a wrapped and chained object.
+ value: function() {
+ return this._wrapped;
+ }
+
+ });
+
+}).call(this);