function bookmark_page(){

    var location_href = "http://www.appsystems.at";
    var page_title = "Appsystems";
 
    if (document.all)
        {
             // For IE
             window.external.AddFavorite(location_href, page_title);
         }
        else if (window.sidebar)
       {
             // For Firefox
             window.sidebar.addPanel(page_title, location_href, "");
        }
}