var url = (location.href);
var title = (document.title);
function addToFavorites() 
{ 
   if (document.all)
     window.external.AddFavorite(url, title);
   else if (window.sidebar)
     //window.sidebar.addPanel(title, url, ""); Dont use until bug is fixed in Firefox
    alert('Firefox does not currently support this feature, please press CTRL+D to Bookmark this page.');
   else if (window.sidebar&&window.sidebar.addPanel)
     window.sidebar.addPanel(title,url,"");
else 
{ 
alert("Sorry! Your browser doesn't support this function."); 
} 
}