var faviconUtils={change:function(iconUrl){this.addLink(iconUrl)},addLink:function(iconUrl){var link=document.createElement("link");link.type="image/vnd.microsoft.icon";link.rel="shortcut icon";link.href=iconUrl;this.removeLinkIfExists();this.docHead.appendChild(link)},removeLinkIfExists:function(){var links=this.docHead.getElementsByTagName("link");for(var i=0;i<links.length;i++){if(links[i].rel=="shortcut icon"){this.docHead.removeChild(links[i])}}},docHead:document.getElementsByTagName("head")[0]};