/*
 * jQuery history plugin
 * 
 * The MIT License
 * 
 * Copyright (c) 2006-2009 Taku Sano (Mikage Sawatari)
 * Copyright (c) 2010 Takayuki Miwa
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
(function($){var locationWrapper={put:function(hash,win){(win||window).location.hash=this.encoder(hash);},get:function(win){var hash=((win||window).location.hash).replace(/^#/,'');try{return $.browser.mozilla?hash:decodeURIComponent(hash);}
catch(error){return hash;}},encoder:encodeURIComponent};var iframeWrapper={id:"__jQuery_history",init:function(){var html='<iframe id="'+this.id+'" style="display:none" src="javascript:false;" />';$("body").prepend(html);return this;},_document:function(){return $("#"+this.id)[0].contentWindow.document;},put:function(hash){var doc=this._document();doc.open();doc.close();locationWrapper.put(hash,doc);},get:function(){return locationWrapper.get(this._document());}};function initObjects(options){options=$.extend({unescape:false},options||{});locationWrapper.encoder=encoder(options.unescape);function encoder(unescape_){if(unescape_===true){return function(hash){return hash;};}
if(typeof unescape_=="string"&&(unescape_=partialDecoder(unescape_.split("")))||typeof unescape_=="function"){return function(hash){return unescape_(encodeURIComponent(hash));};}
return encodeURIComponent;}
function partialDecoder(chars){var re=new RegExp($.map(chars,encodeURIComponent).join("|"),"ig");return function(enc){return enc.replace(re,decodeURIComponent);};}}
var implementations={};implementations.base={callback:undefined,type:undefined,check:function(){},load:function(hash){},init:function(callback,options){initObjects(options);self.callback=callback;self._options=options;self._init();},_init:function(){},_options:{}};implementations.timer={_appState:undefined,_init:function(){var current_hash=locationWrapper.get();self._appState=current_hash;self.callback(current_hash);setInterval(self.check,100);},check:function(){var current_hash=locationWrapper.get();if(current_hash!=self._appState){self._appState=current_hash;self.callback(current_hash);}},load:function(hash){if(hash!=self._appState){locationWrapper.put(hash);self._appState=hash;self.callback(hash);}}};implementations.iframeTimer={_appState:undefined,_init:function(){var current_hash=locationWrapper.get();self._appState=current_hash;iframeWrapper.init().put(current_hash);self.callback(current_hash);setInterval(self.check,100);},check:function(){var iframe_hash=iframeWrapper.get(),location_hash=locationWrapper.get();if(location_hash!=iframe_hash){if(location_hash==self._appState){self._appState=iframe_hash;locationWrapper.put(iframe_hash);self.callback(iframe_hash);}else{self._appState=location_hash;iframeWrapper.put(location_hash);self.callback(location_hash);}}},load:function(hash){if(hash!=self._appState){locationWrapper.put(hash);iframeWrapper.put(hash);self._appState=hash;self.callback(hash);}}};implementations.hashchangeEvent={_init:function(){self.callback(locationWrapper.get());$(window).bind('hashchange',self.check);},check:function(){self.callback(locationWrapper.get());},load:function(hash){locationWrapper.put(hash);}};var self=$.extend({},implementations.base);if($.browser.msie&&($.browser.version<8||document.documentMode<8)){self.type='iframeTimer';}else if("onhashchange"in window){self.type='hashchangeEvent';}else{self.type='timer';}
$.extend(self,implementations[self.type]);$.history=self;})(jQuery);