function addBookmark(title, url, obj){
if (!url) url = location.href;
if (!title) title = document.title;
if ((typeof window.sidebar == "object") && (typeof window.sidebar.addPanel == "function")) 
  window.sidebar.addPanel (title, url, ""); //Gecko
else if (document.all) 
  window.external.AddFavorite(url, title); //IE4+
else if (window.opera && document.createElement) {
  obj.setAttribute('rel','sidebar');
  obj.setAttribute('href',url);
  obj.setAttribute('title',title);
}
else {
  alert('Press Ctrl+D (Ctrl+T for old Opera)!');
  return false; //IF Opera 6
}
  return true;
}