// bookmark function
function Bookmark() {
    // Get title
    title = window.document.title;
    // Get url
    url = window.document.location;

    if ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4))
        window.external.AddFavorite(url, title);
    else
        alert("Press CTRL-D (Firefox) or COMMAND-D(Safari) to bookmark this page");
}