function ExternOpen(url) {
      wohin = url.href;
      var fenster2=window.open(wohin,"_blank","height=500,width=700,top=40,left=60,resizable=yes,status=yes,toolbar=yes,directories=yes,menubar=yes,location=yes,scrollbars=yes");
      fenster2.focus();
      return false;}

   function moveButton (whichbutton,whichclass) {
      document.getElementById(whichbutton).className = whichclass;}

function ImpressumOpen() {
      var fenster=window.open("impressum.htm","Impressum","height=400,width=300,top=120,left=70,resizable=no,status=no,toolbar=no,directories=no,menubar=no,location=no,scrollbars=yes");
      fenster.focus();
      return false;}