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;
}