function validateForm() {
	err = '';
	
	if(document.getElementById('felhasznalo').value.length == 0) {
		err = err + "* " +  $('#labelFelhasznalo').val() + "\n";
	}
	
	if(document.getElementById('jelszo').value.length == 0) {
		err = err + "* " +  $('#labelJelszo').val() + "\n";	
	}
			
	if(err != '') {
		alert( $('#chk').val() + ':\t\t\t\t\t\n' + err);
		return false;
	} else {
		document.bejelentkezesForm.submit();
	}
}