function bookmarkwebsite () {
   if ( navigator.appName == "Microsoft Internet Explorer" && parseInt(navigator.appVersion) >= 4 ) {
      window.external.AddFavorite('http://www.bilalphilips.com/philipz/','YPI Qbasic Homepage');
   } else {
      alert('Ctrl + D to Bookmark');
   }
}
document.write('<font size=4><a href=\"javascript:bookmarkwebsite()\">Bookmark Website</a></font><br>');