From 8180650836696d8f9f3032a23dac25880958f9b4 Mon Sep 17 00:00:00 2001 From: "Elf M. Sternberg" Date: Wed, 8 Dec 2010 16:21:22 -0800 Subject: [PATCH] Backbone initial check-in. --- .gitignore | 6 + backbone-localstorage.js | 84 ++ backbone.js | 985 +++++++++++++++++++++++ data/items.json | 50 ++ images/AdventuresInOdyssey.jpg | Bin 0 -> 53502 bytes images/AdventuresInOdyssey_t.jpg | Bin 0 -> 18955 bytes images/AmericanAttorneys.jpg | Bin 0 -> 61830 bytes images/AmericanAttorneys_t.jpg | Bin 0 -> 21643 bytes images/BritishCivilLightTransport.jpg | Bin 0 -> 76968 bytes images/BritishCivilLightTransport_t.jpg | Bin 0 -> 22761 bytes images/PeriodsofMentalAssimilation.jpg | Bin 0 -> 79124 bytes images/PeriodsofMentalAssimilation_t.jpg | Bin 0 -> 19013 bytes images/Pulaski.jpg | Bin 0 -> 63007 bytes images/Pulaski_t.jpg | Bin 0 -> 18410 bytes images/StealthMonkeyVirus.png | Bin 0 -> 48252 bytes images/StealthMonkeyVirus_t.jpg | Bin 0 -> 7319 bytes images/SumsofMagnolia.jpg | Bin 0 -> 57674 bytes images/SumsofMagnolia_t.jpg | Bin 0 -> 18724 bytes index.html | 69 ++ jquery-1.4.4.min.js | 167 ++++ jquery.tmpl.min.js | 1 + jquery.validjson.js | 283 +++++++ jsonstore.css | 58 ++ spiral.js | 58 ++ store.js | 164 ++++ underscore-min.js | 24 + underscore.js | 722 +++++++++++++++++ 27 files changed, 2671 insertions(+) create mode 100644 .gitignore create mode 100644 backbone-localstorage.js create mode 100644 backbone.js create mode 100644 data/items.json create mode 100644 images/AdventuresInOdyssey.jpg create mode 100644 images/AdventuresInOdyssey_t.jpg create mode 100644 images/AmericanAttorneys.jpg create mode 100644 images/AmericanAttorneys_t.jpg create mode 100644 images/BritishCivilLightTransport.jpg create mode 100644 images/BritishCivilLightTransport_t.jpg create mode 100644 images/PeriodsofMentalAssimilation.jpg create mode 100644 images/PeriodsofMentalAssimilation_t.jpg create mode 100644 images/Pulaski.jpg create mode 100644 images/Pulaski_t.jpg create mode 100644 images/StealthMonkeyVirus.png create mode 100644 images/StealthMonkeyVirus_t.jpg create mode 100644 images/SumsofMagnolia.jpg create mode 100644 images/SumsofMagnolia_t.jpg create mode 100644 index.html create mode 100644 jquery-1.4.4.min.js create mode 100644 jquery.tmpl.min.js create mode 100644 jquery.validjson.js create mode 100644 jsonstore.css create mode 100644 spiral.js create mode 100644 store.js create mode 100644 underscore-min.js create mode 100644 underscore.js diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..13afa13 --- /dev/null +++ b/.gitignore @@ -0,0 +1,6 @@ +*.pyc +*.pyo +*# +.#* +.DS_Store +*~ diff --git a/backbone-localstorage.js b/backbone-localstorage.js new file mode 100644 index 0000000..add3cf7 --- /dev/null +++ b/backbone-localstorage.js @@ -0,0 +1,84 @@ +// A simple module to replace `Backbone.sync` with *localStorage*-based +// persistence. Models are given GUIDS, and saved into a JSON object. Simple +// as that. + +// Generate four random hex digits. +function S4() { + return (((1+Math.random())*0x10000)|0).toString(16).substring(1); +}; + +// Generate a pseudo-GUID by concatenating random hexadecimal. +function guid() { + return (S4()+S4()+"-"+S4()+"-"+S4()+"-"+S4()+"-"+S4()+S4()+S4()); +}; + +// Our Store is represented by a single JS object in *localStorage*. Create it +// with a meaningful name, like the name you'd give a table. +var Store = function(name) { + this.name = name; + var store = localStorage.getItem(this.name); + this.data = (store && JSON.parse(store)) || {}; +}; + +_.extend(Store.prototype, { + + // Save the current state of the **Store** to *localStorage*. + save: function() { + localStorage.setItem(this.name, JSON.stringify(this.data)); + }, + + // Add a model, giving it a (hopefully)-unique GUID, if it doesn't already + // have an id of it's own. + create: function(model) { + if (!model.id) model.id = model.attributes.id = guid(); + this.data[model.id] = model; + this.save(); + return model; + }, + + // Update a model by replacing its copy in `this.data`. + update: function(model) { + this.data[model.id] = model; + this.save(); + return model; + }, + + // Retrieve a model from `this.data` by id. + find: function(model) { + return this.data[model.id]; + }, + + // Return the array of all models currently in storage. + findAll: function() { + return _.values(this.data); + }, + + // Delete a model from `this.data`, returning it. + destroy: function(model) { + delete this.data[model.id]; + this.save(); + return model; + } + +}); + +// Override `Backbone.sync` to use delegate to the model or collection's +// *localStorage* property, which should be an instance of `Store`. +Backbone.sync = function(method, model, success, error) { + + var resp; + var store = model.localStorage || model.collection.localStorage; + + switch (method) { + case "read": resp = model.id ? store.find(model) : store.findAll(); break; + case "create": resp = store.create(model); break; + case "update": resp = store.update(model); break; + case "delete": resp = store.destroy(model); break; + } + + if (resp) { + success(resp); + } else { + error("Record not found"); + } +}; \ No newline at end of file diff --git a/backbone.js b/backbone.js new file mode 100644 index 0000000..f0700fd --- /dev/null +++ b/backbone.js @@ -0,0 +1,985 @@ +// Backbone.js 0.3.2 +// (c) 2010 Jeremy Ashkenas, DocumentCloud Inc. +// Backbone may be freely distributed under the MIT license. +// For all details and documentation: +// http://documentcloud.github.com/backbone + +(function(){ + + // Initial Setup + // ------------- + + // The top-level namespace. All public Backbone classes and modules will + // be attached to this. Exported for both CommonJS and the browser. + var Backbone; + if (typeof exports !== 'undefined') { + Backbone = exports; + } else { + Backbone = this.Backbone = {}; + } + + // Current version of the library. Keep in sync with `package.json`. + Backbone.VERSION = '0.3.2'; + + // Require Underscore, if we're on the server, and it's not already present. + var _ = this._; + if (!_ && (typeof require !== 'undefined')) _ = require("underscore")._; + + // For Backbone's purposes, jQuery owns the `$` variable. + var $ = this.jQuery; + + // Turn on `emulateHTTP` to use support legacy HTTP servers. Setting this option will + // fake `"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` or `unbind` a callback function to an event; + // `trigger`-ing an event fires all callbacks in succession. + // + // var object = {}; + // _.extend(object, Backbone.Events); + // object.bind('expand', function(){ alert('expanded'); }); + // object.trigger('expand'); + // + Backbone.Events = { + + // Bind an event, specified by a string name, `ev`, to a `callback` function. + // Passing `"all"` will bind the callback to all events fired. + bind : function(ev, callback) { + var calls = this._callbacks || (this._callbacks = {}); + var list = this._callbacks[ev] || (this._callbacks[ev] = []); + list.push(callback); + return this; + }, + + // Remove one or many callbacks. If `callback` is null, removes all + // callbacks for the event. If `ev` is null, removes all bound callbacks + // for all events. + unbind : function(ev, callback) { + var calls; + if (!ev) { + this._callbacks = {}; + } else if (calls = this._callbacks) { + if (!callback) { + calls[ev] = []; + } else { + var list = calls[ev]; + if (!list) return this; + for (var i = 0, l = list.length; i < l; i++) { + if (callback === list[i]) { + list.splice(i, 1); + break; + } + } + } + } + return this; + }, + + // Trigger an event, firing all bound callbacks. Callbacks are passed the + // same arguments as `trigger` is, apart from the event name. + // Listening for `"all"` passes the true event name as the first argument. + trigger : function(ev) { + var list, calls, i, l; + if (!(calls = this._callbacks)) return this; + if (list = calls[ev]) { + for (i = 0, l = list.length; i < l; i++) { + list[i].apply(this, Array.prototype.slice.call(arguments, 1)); + } + } + if (list = calls['all']) { + for (i = 0, l = list.length; i < l; i++) { + list[i].apply(this, arguments); + } + } + return this; + } + + }; + + // Backbone.Model + // -------------- + + // Create a new model, with defined attributes. A client id (`cid`) + // is automatically generated and assigned for you. + Backbone.Model = function(attributes, options) { + attributes || (attributes = {}); + if (this.defaults) attributes = _.extend({}, this.defaults, attributes); + this.attributes = {}; + this.cid = _.uniqueId('c'); + this.set(attributes, {silent : true}); + this._previousAttributes = _.clone(this.attributes); + if (options && options.collection) this.collection = options.collection; + this.initialize(attributes, options); + }; + + // Attach all inheritable methods to the Model prototype. + _.extend(Backbone.Model.prototype, Backbone.Events, { + + // A snapshot of the model's previous attributes, taken immediately + // after the last `"change"` event was fired. + _previousAttributes : null, + + // Has the item been changed since the last `"change"` event? + _changed : false, + + // 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() { + return _.clone(this.attributes); + }, + + // Get the value of an attribute. + get : function(attr) { + return this.attributes[attr]; + }, + + // Set a hash of model attributes on the object, firing `"change"` unless you + // choose to silence it. + set : function(attrs, options) { + + // Extract attributes and options. + options || (options = {}); + if (!attrs) return this; + if (attrs.attributes) attrs = attrs.attributes; + var now = this.attributes; + + // Run validation. + if (!options.silent && this.validate && !this._performValidation(attrs, options)) return false; + + // Check for changes of `id`. + if ('id' in attrs) this.id = attrs.id; + + // Update attributes. + for (var attr in attrs) { + var val = attrs[attr]; + if (!_.isEqual(now[attr], val)) { + now[attr] = val; + if (!options.silent) { + this._changed = true; + this.trigger('change:' + attr, this, val); + } + } + } + + // Fire the `"change"` event, if the model has been changed. + if (!options.silent && this._changed) this.change(); + return this; + }, + + // Remove an attribute from the model, firing `"change"` unless you choose + // to silence it. + unset : function(attr, options) { + options || (options = {}); + var value = this.attributes[attr]; + + // Run validation. + var validObj = {}; + validObj[attr] = void 0; + if (!options.silent && this.validate && !this._performValidation(validObj, options)) return false; + + // Remove the attribute. + delete this.attributes[attr]; + if (!options.silent) { + this._changed = true; + this.trigger('change:' + attr, this); + this.change(); + } + return this; + }, + + // Clear all attributes on the model, firing `"change"` unless you choose + // to silence it. + clear : function(options) { + options || (options = {}); + var old = this.attributes; + + // Run validation. + var validObj = {}; + for (attr in old) validObj[attr] = void 0; + if (!options.silent && this.validate && !this._performValidation(validObj, options)) return false; + + this.attributes = {}; + if (!options.silent) { + this._changed = true; + for (attr in old) { + this.trigger('change:' + attr, this); + } + this.change(); + } + return this; + }, + + // Fetch the model from the server. If the server's representation of the + // model differs from its current attributes, they will be overriden, + // triggering a `"change"` event. + fetch : function(options) { + options || (options = {}); + var model = this; + var success = function(resp) { + if (!model.set(model.parse(resp), options)) return false; + if (options.success) options.success(model, resp); + }; + var error = options.error && _.bind(options.error, null, model); + (this.sync || Backbone.sync)('read', this, success, error); + return this; + }, + + // 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(attrs, options) { + options || (options = {}); + if (attrs && !this.set(attrs, options)) return false; + var model = this; + var success = function(resp) { + if (!model.set(model.parse(resp), options)) return false; + if (options.success) options.success(model, resp); + }; + var error = options.error && _.bind(options.error, null, model); + var method = this.isNew() ? 'create' : 'update'; + (this.sync || Backbone.sync)(method, this, success, error); + return this; + }, + + // Destroy this model on the server. Upon success, the model is removed + // from its collection, if it has one. + destroy : function(options) { + options || (options = {}); + var model = this; + var success = function(resp) { + if (model.collection) model.collection.remove(model); + if (options.success) options.success(model, resp); + }; + var error = options.error && _.bind(options.error, null, model); + (this.sync || Backbone.sync)('delete', this, success, error); + return this; + }, + + // 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 = getUrl(this.collection); + if (this.isNew()) return base; + return base + (base.charAt(base.length - 1) == '/' ? '' : '/') + 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) { + return resp; + }, + + // Create a new model with identical attributes to this one. + clone : function() { + return new this.constructor(this); + }, + + // A model is new if it has never been saved to the server, and has a negative + // ID. + isNew : function() { + return !this.id; + }, + + // Call this method to manually fire a `change` event for this model. + // Calling this will cause all objects observing the model to update. + change : function() { + this.trigger('change', this); + this._previousAttributes = _.clone(this.attributes); + this._changed = false; + }, + + // 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) return this._previousAttributes[attr] != this.attributes[attr]; + return this._changed; + }, + + // 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. + changedAttributes : function(now) { + now || (now = this.attributes); + var old = this._previousAttributes; + var changed = false; + for (var attr in now) { + if (!_.isEqual(old[attr], now[attr])) { + changed = changed || {}; + changed[attr] = now[attr]; + } + } + return changed; + }, + + // Get the previous value of an attribute, recorded at the time the last + // `"change"` event was fired. + previous : function(attr) { + if (!attr || !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); + }, + + // Run validation against a set of incoming attributes, returning `true` + // if all is well. If a specific `error` callback has been passed, + // call that instead of firing the general `"error"` event. + _performValidation : function(attrs, options) { + var error = this.validate(attrs); + if (error) { + if (options.error) { + options.error(this, error); + } else { + this.trigger('error', this, error); + } + return false; + } + return true; + } + + }); + + // Backbone.Collection + // ------------------- + + // Provides a standard collection class for our sets of models, ordered + // or unordered. If a `comparator` is specified, the Collection will maintain + // its models in sort order, as they're added and removed. + Backbone.Collection = function(models, options) { + options || (options = {}); + if (options.comparator) { + this.comparator = options.comparator; + delete options.comparator; + } + this._boundOnModelEvent = _.bind(this._onModelEvent, this); + this._reset(); + if (models) this.refresh(models, {silent: true}); + this.initialize(models, options); + }; + + // Define the Collection's inheritable methods. + _.extend(Backbone.Collection.prototype, Backbone.Events, { + + // The default model for a collection is just a **Backbone.Model**. + // This should be overridden in most cases. + model : Backbone.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() { + return this.map(function(model){ return model.toJSON(); }); + }, + + // Add a model, or list of models to the set. Pass **silent** to avoid + // firing the `added` event for every new model. + add : function(models, options) { + if (_.isArray(models)) { + for (var i = 0, l = models.length; i < l; i++) { + this._add(models[i], options); + } + } else { + this._add(models, options); + } + return this; + }, + + // Remove a model, or a list of models from the set. Pass silent to avoid + // firing the `removed` event for every model removed. + remove : function(models, options) { + if (_.isArray(models)) { + for (var i = 0, l = models.length; i < l; i++) { + this._remove(models[i], options); + } + } else { + this._remove(models, options); + } + return this; + }, + + // Get a model from the set by id. + get : function(id) { + if (id == null) return null; + return this._byId[id.id != null ? id.id : id]; + }, + + // Get a model from the set by client id. + getByCid : function(cid) { + return cid && this._byCid[cid.cid || cid]; + }, + + // Get the model at the given index. + at: function(index) { + return this.models[index]; + }, + + // 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) { + options || (options = {}); + if (!this.comparator) throw new Error('Cannot sort a set without a comparator'); + this.models = this.sortBy(this.comparator); + if (!options.silent) this.trigger('refresh', this); + return this; + }, + + // Pluck an attribute from each model in the collection. + pluck : function(attr) { + return _.map(this.models, function(model){ return model.get(attr); }); + }, + + // When you have more items than you want to add or remove individually, + // you can refresh the entire set with a new list of models, without firing + // any `added` or `removed` events. Fires `refresh` when finished. + refresh : function(models, options) { + models || (models = []); + options || (options = {}); + this._reset(); + this.add(models, {silent: true}); + if (!options.silent) this.trigger('refresh', this); + return this; + }, + + // Fetch the default set of models for this collection, refreshing the + // collection when they arrive. + fetch : function(options) { + options || (options = {}); + var collection = this; + var success = function(resp) { + collection.refresh(collection.parse(resp)); + if (options.success) options.success(collection, resp); + }; + var error = options.error && _.bind(options.error, null, collection); + (this.sync || Backbone.sync)('read', this, success, error); + return this; + }, + + // Create a new instance of a model in this collection. After the model + // has been created on the server, it will be added to the collection. + create : function(model, options) { + var coll = this; + options || (options = {}); + if (!(model instanceof Backbone.Model)) { + model = new this.model(model, {collection: coll}); + } else { + model.collection = coll; + } + var success = function(nextModel, resp) { + coll.add(nextModel); + if (options.success) options.success(nextModel, resp); + }; + return model.save(null, {success : success, error : options.error}); + }, + + // **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) { + return resp; + }, + + // Proxy to _'s chain. Can't be proxied the same way the rest of the + // underscore methods are proxied because it relies on the underscore + // constructor. + chain: function () { + return _(this.models).chain(); + }, + + // Reset all internal state. Called when the collection is refreshed. + _reset : function(options) { + this.length = 0; + this.models = []; + this._byId = {}; + this._byCid = {}; + }, + + // Internal implementation of adding a single model to the set, updating + // hash indexes for `id` and `cid` lookups. + _add : function(model, options) { + options || (options = {}); + if (!(model instanceof Backbone.Model)) { + model = new this.model(model, {collection: this}); + } + var already = this.getByCid(model); + if (already) throw new Error(["Can't add the same model to a set twice", already.id]); + this._byId[model.id] = model; + this._byCid[model.cid] = model; + model.collection = this; + var index = this.comparator ? this.sortedIndex(model, this.comparator) : this.length; + this.models.splice(index, 0, model); + model.bind('all', this._boundOnModelEvent); + this.length++; + if (!options.silent) model.trigger('add', model, this); + return model; + }, + + // Internal implementation of removing a single model from the set, updating + // hash indexes for `id` and `cid` lookups. + _remove : function(model, options) { + options || (options = {}); + model = this.getByCid(model) || this.get(model); + if (!model) return null; + delete this._byId[model.id]; + delete this._byCid[model.cid]; + delete model.collection; + this.models.splice(this.indexOf(model), 1); + this.length--; + if (!options.silent) model.trigger('remove', model, this); + model.unbind('all', this._boundOnModelEvent); + return model; + }, + + // 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. + _onModelEvent : function(ev, model) { + if (ev === 'change:id') { + delete this._byId[model.previous('id')]; + this._byId[model.id] = model; + } + this.trigger.apply(this, arguments); + } + + }); + + // Underscore methods that we want to implement on the Collection. + var methods = ['forEach', 'each', 'map', 'reduce', 'reduceRight', 'find', 'detect', + 'filter', 'select', 'reject', 'every', 'all', 'some', 'any', 'include', + 'invoke', 'max', 'min', 'sortBy', 'sortedIndex', 'toArray', 'size', + 'first', 'rest', 'last', 'without', 'indexOf', 'lastIndexOf', 'isEmpty']; + + // Mix in each Underscore method as a proxy to `Collection#models`. + _.each(methods, function(method) { + Backbone.Collection.prototype[method] = function() { + return _[method].apply(_, [this.models].concat(_.toArray(arguments))); + }; + }); + + // Backbone.Controller + // ------------------- + + // Controllers map faux-URLs to actions, and fire events when routes are + // matched. Creating a new one sets its `routes` hash, if not set statically. + Backbone.Controller = function(options) { + options || (options = {}); + if (options.routes) this.routes = options.routes; + this._bindRoutes(); + this.initialize(options); + }; + + // Cached regular expressions for matching named param parts and splatted + // parts of route strings. + var namedParam = /:([\w\d]+)/g; + var splatParam = /\*([\w\d]+)/g; + + // Set up all inheritable **Backbone.Controller** properties and methods. + _.extend(Backbone.Controller.prototype, Backbone.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) { + Backbone.history || (Backbone.history = new Backbone.History); + if (!_.isRegExp(route)) route = this._routeToRegExp(route); + Backbone.history.route(route, _.bind(function(fragment) { + var args = this._extractParameters(route, fragment); + callback.apply(this, args); + this.trigger.apply(this, ['route:' + name].concat(args)); + }, this)); + }, + + // Simple proxy to `Backbone.history` to save a fragment into the history, + // without triggering routes. + saveLocation : function(fragment) { + Backbone.history.saveLocation(fragment); + }, + + // Bind all defined routes to `Backbone.history`. + _bindRoutes : function() { + if (!this.routes) return; + for (var route in this.routes) { + var name = this.routes[route]; + this.route(route, name, this[name]); + } + }, + + // Convert a route string into a regular expression, suitable for matching + // against the current location fragment. + _routeToRegExp : function(route) { + route = route.replace(namedParam, "([^\/]*)").replace(splatParam, "(.*?)"); + return new RegExp('^' + route + '$'); + }, + + // Given a route, and a URL fragment that it matches, return the array of + // extracted parameters. + _extractParameters : function(route, fragment) { + return route.exec(fragment).slice(1); + } + + }); + + // Backbone.History + // ---------------- + + // Handles cross-browser history management, based on URL hashes. If the + // browser does not support `onhashchange`, falls back to polling. + Backbone.History = function() { + this.handlers = []; + this.fragment = this.getFragment(); + _.bindAll(this, 'checkUrl'); + }; + + // Cached regex for cleaning hashes. + var hashStrip = /^#*/; + + // Set up all inheritable **Backbone.History** properties and methods. + _.extend(Backbone.History.prototype, { + + // The default interval to poll for hash changes, if necessary, is + // twenty times a second. + interval: 50, + + // Get the cross-browser normalized URL fragment. + getFragment : function(loc) { + var frag = (loc || window.location).hash.replace(hashStrip, ''); + return frag; + }, + + // Start the hash change handling, returning `true` if the current URL matches + // an existing route, and `false` otherwise. + start : function() { + var docMode = document.documentMode; + var oldIE = ($.browser.msie && (!docMode || docMode <= 7)); + if (oldIE) { + this.iframe = $('