function show( name )
   {
   var showwin = document.getElementById( name );
   if ( showwin ) showwin.style.display='block';
   }

  function hide( name )
   {
   var showwin = document.getElementById( name );
   if ( showwin ) showwin.style.display='none';
   }

  function popup(datei)
   {
   fenster=window.open(datei, 'popup', 'fullscreen=0, width=600, height=600, top=0, left=0, toolbar=1, title=0, location=0, directories=0, statusbar=0, status=0, menubar=0, scrollbars=0, resizable=0, copyhistory=0');
   fenster.moveTo(20,20);
   }