<!--
  function orient(txt) { // Orientierung
    var xx="<b>Orientierung:&nbsp;&nbsp;</b>";
    var yy="<a class='oo' href='index.htm' target='_parent'>HOME</a>&nbsp;&nbsp;/&nbsp;&nbsp;";
    var xxx=xx+yy+"<span class='oo'>"+txt+"</span>";
    if(document.getElementById) {
      if(parent.topFrame) {
         if(parent.topFrame.document.getElementById("oo")) {
            parent.topFrame.document.getElementById("oo").innerHTML=xxx;
         }
      }
    }
  }// END orient()

  function load_ex1() { // für ex1
    if(self == top) { window.location.href='index.htm?'+self.location.href; }
        if(document.getElementById) {
   //alert(parent.mainFrame.document.getElementById("ex1"));  //  window.
   if(window.document.getElementById("ex1")) { // auf Hidden setzen, nur wenn Objekt existiert
      window.document.getElementById("ex1").style.visibility="hidden";
   } else {
   }
        } else {
           if(document.layers) { // NC 4
               window.document.ex1.visibility="hidden";
           } else {
              if(document.all) { // IE 4
                 ex1.style.visibility="hidden";
             }
           }
        }
  }

  function load_ex2() { // nur hauptverzeichnis
  if(self == top) { window.location.href='index.htm?'+self.location.href; }
  }
  function load_ex3() { // nur hauptverzeichnis
  if(self == top) { window.location.href='index.htm?'; }
  }
  function qpy() { // Frameset laden, falls unvollständig
   a=top.location.search.substring(1,top.location.search.length);
   if(a != '') {
    window.frames['mainFrame'].location.href=a;
   }
  }
  function load_bck1() { // für back1
    if(typeof(parent.topFrame)!= "object") {  return false; }
    if(document.getElementById) {
        document.getElementById("back1").style.visibility="visible";
    }
    if(document.layers) { // NC 4
        window.document.back1.visibility="visible";
    }
    if(document.all) { // IE 4
        back1.style.visibility="visible";
    }
  }
//-->
