var txt = "zu den Favoriten"
var url = "http://www.wilken-wiesmoor.de"
var who = "Wilken GmbH - Elemente- und Wintergartenbau"
var ver = navigator.appName
var num = parseInt(navigator.appVersion)
if ((ver == "Microsoft Internet Explorer")&&(num >= 4)) {
   document.write('<a id="link_footer" href="javascript:window.external.AddFavorite(url,who);"');
   document.write('>'+ txt + '</a>')
}else{
   document.write('Bookmark');
}