function bookmark() {
	
	title = document.title;
	url = document.URL;
	
   if (navigator.appName=='Microsoft Internet Explorer')  {
      // per explorer
      window.external.AddFavorite(url, title);
  }
  else if (navigator.appName=='Netscape')
 {
      // per firefox e Gecko-like
      window.sidebar.addPanel(title,url,'');
   }
}