function bookmark() {
 
 title = document.title; 
 url = window.location.href;
 
  if (window.sidebar) 
  { // Mozilla Firefox Bookmark
    window.sidebar.addPanel(title, url,"");
  } 
  else if( window.external ) 
  { // IE Favorite
    window.external.AddFavorite( url, title); 
  }
  else if(window.opera && window.print) 
  { // Opera Hotlist
      return true; 
  }
}