function addBookmark(url, title)
   {
     if (!url) url = location.href;
     if (!title) title = 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 && document.createElement)
     {
       var a = document.createElement('A');
       if (!a) return false; //IF Opera 6
       a.setAttribute('rel','sidebar');
       a.setAttribute('href',url);
       a.setAttribute('title',title);
       a.click();
     }
     else return false;

     return true;
}