var url = this.location;
var who = document.title;
var ver = navigator.appName
var num = parseInt(navigator.appVersion)
if ((ver == "Microsoft Internet Explorer")&&(num >= 4)) {
   document.write('<a class="iebookmark" href="javascript:window.external.AddFavorite(url,who)\;">Bookmark</a>')
}else{
   document.write('Bookmark (CTRL-D)')
}