//--------------------------------------------------------------------------
// Detail-Fenster oeffnen
var offen = false;
var fenster = null;

function fenster_zu(dateiname, features)
{
   if (offen == true) fenster.close();
}


function popup(dateiname, features)
{
   if (offen == true)
   {
      fenster.close();
   }
   fenster = window.open(dateiname, 'fenster', features);
   offen = true;
   fenster.focus();
}