<!-- Bookmark Us -->
function bookmark(url,title){
  if ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4)) {
  window.external.AddFavorite(url,title);
  } else if (navigator.appName == "Netscape") {
    window.sidebar.addPanel(title,url,"");
  } else {
    alert("Press CTRL-D (Netscape) or CTRL-T (Opera) to bookmark");
  }
}

<!--Bookmark Code 02-->
//function bookmark(url, sitename)
//{
//  ns="Netscape and FireFox users, use CTRL+D to bookmark this site."
//  if ((navigator.appName=='Microsoft Internet Explorer') &&
//    (parseInt(navigator.appVersion)>=4))
//  {
//    window.external.AddFavorite(url, sitename);
//  }
//  else if (navigator.appName=='Netscape')
//  {
//    alert(ns);
//  }
//}