function add2Fav(x){
   if (document.all  && !window.opera) {
     if (typeof window.external == "object") {
    window.external.AddFavorite(document.location, document.title);
    return true;
       }
else return false;

 }
 else{
    x.href=document.location;
    x.title=document.title;
    x.rel = "sidebar";
            return true;
   }
}