function Test()
   {

  if(document.down.code.value.indexOf('35') == -1)
    {
     alert("Fehlerhaft Eingabe");     
	 }
 
  else
   {
   	 window.open('down.htm', 'newWin', 'scrollbars=yes,status=yes,width=300,height=300');
	 }
  }