function add2favorites( nome, url ) { 
  if (nome && nome!='' && url && url!='') { 
    if(window.sidebar) { // Mozilla Firefox Bookmark 
      window.sidebar.addPanel (nome,url,''); 
    } else if(document.all) { // Internet Explorer 
      window.external.AddFavorite(url, nome); 
    } else if (window.opera && window.print) { // Opera 
      var link = document.createElement("a"); 
      link.setAttribute("rel", "sidebar"); 
      link.setAttribute("href", url); 
      link.setAttribute("title", nome); 
      link.click(); 
    } 
  } 
  return false; 
}