if ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4)){
  var url = "http://www.free-auto-car-insurance-quotes.net/";
  var ttl = "Free Auto Car Insurance Quotes";
  document.write('<B>[<A HREF="javascript:window.external.AddFavorite(url,ttl);">Bookmark us!</A>]</B>'); 
}
else{
  document.write('<B>[Bookmark us!');
  if (navigator.appName == "Netscape"){
    document.write(' (Ctrl-D)');
    }
  document.write(']</B>');
}