var who = 'Rohstoffeinkauf aktuell';
var url = 'http://www.rohstoffeinkauf-aktuell.de';
var img = '/img/template/favoriten_icon.gif';

var ver = navigator.appName
var num = parseInt(navigator.appVersion)

if ((ver == 'Microsoft Internet Explorer')&&(num >= 4)) {
   document.write('<a href="" onclick="window.external.AddFavorite(url,who);" title="den Favoriten hinzuf&uuml;gen"><img src="'+img+'" width="20" height="20" alt="den Favoriten hinzuf&uuml;gen" border="0"></a>');
}