function add2browser() {

var bookmarkurl="http://www.webcarlo.it"
var bookmarktitle="WebCarlo.it"    

if (window.sidebar&&window.sidebar.addPanel)
window.sidebar.addPanel(bookmarktitle, bookmarkurl,"");
else 
 if (document.all)
window.external.AddFavorite(bookmarkurl,bookmarktitle)

   }