function bookmark_us(url, title) {
 if (window.sidebar)
  window.sidebar.addPanel(title, url, "");
 else if(window.opera && window.print) {
  var elem = document.createElement('a');
    elem.setAttribute('href',url);
    elem.setAttribute('title',title);
    elem.setAttribute('rel','sidebar');
    elem.click();
 } else if(document.all)
    window.external.AddFavorite(url, title);
}