function bookmark(url, description) {
    netscape = "If you are not using Internet Explorer then please press CTRL+D to add a bookmark to this site."
    if (navigator.appName == 'Microsoft Internet Explorer') {
        window.external.AddFavorite(url, description);
    }
    else if (navigator.appName == 'Netscape') {
        alert(netscape);
    }
}
//-->