function addFavorite(){ 
var aUrls=document.URL.split("/"); 
var vDomainName="http://"+aUrls[2]+"/"; 
var description=document.title; 
try{//IE 
window.external.AddFavorite(vDomainName,description); 
}catch(e){//FF 
window.sidebar.addPanel(description,vDomainName,""); 
} 
}