var von_oben=(screen.height/8)
  var von_links=(screen.width/2)-350
  <!--
  function desk_auf()
  {
    window.open( "../intranet/html/intranet_mainframe.htm" ,"intranet","toolbar=no, directories=no,statusbar=no,menubar=no,scrollbars=no,resizable=no,copyhistory=no,width=650,height=500,left="+von_links+",top="+von_oben);
  }

  function desk_auf_us()
   {
    window.open( "../../intranet/html/intranet_mainframe.htm" ,"intranet","toolbar=no, directories=no,statusbar=no,menubar=no,scrollbars=no,resizable=no,copyhistory=no,width=650,height=500,left="+von_links+",top="+von_oben);
  }