function bookmark(address,sitename) 
{
    if (window.sidebar)
      {
        window.sidebar.addPanel(sitename, address,"");
      }
      else if( document.all ) 
      {
        window.external.AddFavorite(address, sitename);
      } 
      else if( window.opera && window.print )
       {
        return true;
       }
}