function bookmark() {
    title = document.title;
    url = document.location.href;
    alerttext = 'Press Control + D to bookmark!';
    worked = false;
    try {
        window.sidebar.addPanel(title, url, "");
        worked = true;
    } catch (err) {
     }
    try {
        window.external.AddFavorite(url, title);
        worked = true;
    } catch (err) {
     }
    try {
        window.external.AddFavorite(title, url, "");
        worked = true;
    } catch (err) { }

    if (!worked) {
        alert(alerttext);
    }
}