function NeuFenster()

  {

   MeinFenster =


   window.open("calender.htm", "Zweitfenster", "width=220,height=255,scrollbars=no,toolbar=no,location=no,directories=no,status=no,menubar=no,resizable=yes,left=80,top=20");

   MeinFenster.focus();

  }