function bookmark_site(obj, url, title) {
 if(window.sidebar) {
    // Mozilla Firefox Bookmark
    // bug: window.sidebar.addPanel(title, url,"");
    alert('Firefox users: please press CTRL + D to Bookmark this page! \n \t \t (after closing this message box)');
  }  
  else if(window.external) {
    // IE Favorite
    window.external.AddFavorite(url, title);
  }
  else if(window.opera && window.print) {
    // Opera
    obj.setAttribute('href',url);
    obj.setAttribute('title',title);
    obj.setAttribute('rel','sidebar');
    obj.click();
  }
  else {
    // Most other browsers
    alert('Please press CTRL + D to Bookmark this page! \n \t \t (after closing this message box)');
  }
}