LazyLoad=(function(doc){var env,head,pending={},pollCount=0,queue={css:[],js:[]},styleSheets=doc.styleSheets;function createNode(name,attrs){var node=doc.createElement(name),attr;for(attr in attrs){if(attrs.hasOwnProperty(attr)){node.setAttribute(attr,attrs[attr])}}return node}function finish(type){var p=pending[type],callback,urls;if(p){callback=p.callback;urls=p.urls;urls.shift();pollCount=0;if(!urls.length){callback&&callback.call(p.context,p.obj);pending[type]=null;queue[type].length&&load(type)}}}function getEnv(){var ua=navigator.userAgent;env={async:doc.createElement('script').async===true};(env.webkit=/AppleWebKit\//.test(ua))||(env.ie=/MSIE|Trident/.test(ua))||(env.opera=/Opera/.test(ua))||(env.gecko=/Gecko\//.test(ua))||(env.unknown=true)}function load(type,urls,callback,obj,context){var _finish=function(){finish(type)},isCSS=type==='css',nodes=[],i,len,node,p,pendingUrls,url;env||getEnv();if(urls){urls=typeof urls==='string'?[urls]:urls.concat();if(isCSS||env.async||env.gecko||env.opera){queue[type].push({urls:urls,callback:callback,obj:obj,context:context})}else{for(i=0,len=urls.length;i<len;++i){queue[type].push({urls:[urls[i]],callback:i===len-1?callback:null,obj:obj,context:context})}}}if(pending[type]||!(p=pending[type]=queue[type].shift())){return}head||(head=doc.head||doc.getElementsByTagName('head')[0]);pendingUrls=p.urls;for(i=0,len=pendingUrls.length;i<len;++i){url=pendingUrls[i];if(isCSS){node=env.gecko?createNode('style'):createNode('link',{href:url,rel:'stylesheet'})}else{node=createNode('script',{src:url});node.async=false}node.className='lazyload';node.setAttribute('charset','utf-8');if(env.ie&&!isCSS&&'onreadystatechange'in node&&!('draggable'in node)){node.onreadystatechange=function(){if(/loaded|complete/.test(node.readyState)){node.onreadystatechange=null;_finish()}}}else if(isCSS&&(env.gecko||env.webkit)){if(env.webkit){p.urls[i]=node.href;pollWebKit()}else{node.innerHTML='@import "'+url+'";';pollGecko(node)}}else{node.onload=node.onerror=_finish}nodes.push(node)}for(i=0,len=nodes.length;i<len;++i){head.appendChild(nodes[i])}}function pollGecko(node){var hasRules;try{hasRules=!!node.sheet.cssRules}catch(ex){pollCount+=1;if(pollCount<200){setTimeout(function(){pollGecko(node)},50)}else{hasRules&&finish('css')}return}finish('css')}function pollWebKit(){var css=pending.css,i;if(css){i=styleSheets.length;while(--i>=0){if(styleSheets[i].href===css.urls[0]){finish('css');break}}pollCount+=1;if(css){if(pollCount<200){setTimeout(pollWebKit,50)}else{finish('css')}}}}return{css:function(urls,callback,obj,context){load('css',urls,callback,obj,context)},js:function(urls,callback,obj,context){load('js',urls,callback,obj,context)}}})(this.document);