function Zeigen(){
  var URI = unescape(location.href);
  var fileN1 = URI.lastIndexOf("/") + 1;
  var fileN2 = URI.length;
  var zeile  = URI.substring(fileN1,fileN2);
  var suchen2 = zeile.search(/\?/);
  if (suchen2 != -1){
   var fileN5 = zeile.lastIndexOf("?");
   var zeile	 = zeile.substring(0,fileN5);
  }
  var i = document.links.length - 1;
  for (i; i >= 0; i--){
   var pagelinks = document.getElementsByTagName("a")[i].getAttribute("href");
   var fileN3 = pagelinks.lastIndexOf("/") + 1;
   var fileN4 = pagelinks.length;
   var zeile2 = pagelinks.substring(fileN3,fileN4);
   var suchen = zeile2.search(/\?/);
   if (suchen != -1){
    var fileN6 = zeile2.lastIndexOf("?");
    var zeile2	 = zeile2.substring(0,fileN6);
   }   
   if (zeile == zeile2){
    document.getElementsByTagName("a")[i].setAttribute("className","active");
    document.getElementsByTagName("a")[i].setAttribute("class","active");
    break;
   }
  }

 }