function addBookmark(a)
{
 var url = window.document.location;
 var title = window.document.title;
  
  //Gecko
  if ((typeof window.sidebar == "object") && (typeof window.sidebar.addPanel == "function")) window.sidebar.addPanel (title, url, "");
  //IE4+
  else if (typeof window.external == "object") window.external.AddFavorite(url, title);
  //Opera7+
  else if (window.opera)
  {
  a.href = url;
  a.rel = "sidebar";
  a.title = title;
  return true;
  }
  else return false;
  
  return true;
}