var bookmarkurl="http://www.sito.com"
var bookmarktitle="descrizione"
function prefer(){
if (document.all)
window.external.AddFavorite(bookmarkurl,bookmarktitle)
}
function send(nick, dominio) { 
var chiocciola = '@';
var nick= 'mauragu';
var dominio= 'libero.it';
location.href = 'mailto:' + nick + chiocciola + dominio; 
}