function maps(URL) {
  mapsWindow = window.open(URL, "Fenster", "toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=750,height=500,left=445,top=30");
  mapsWindow.focus();
  return false;
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}