function pruefen(formularX, feldY) {
              for (var i = 0; i <= feldY; i++)
                 if (document.forms[formularX].elements[i].value == "")
		{
		alert ('Bitte alle Felder ausfüllen');
		document.forms[formularX].elements[i].focus ();
		return false;
		}
		return true;
}