function bookMark() {
if ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4)){
window.external.AddFavorite (window.location,document.title);
}
else {
var msg = "Don't forget to bookmark us!";
if(navigator.appName == "Netscape") msg += " (CTRL-D)";
alert(msg);
}
}