public function isValid($data)
{
$passwordConfirmation = $this->getElement('passwordConfirmation');
if (!empty($data['MP_Password'])) {
$passwordConfirmation->setRequired(true)->addValidator('NotEmpty', true, array('messages' => array('isEmpty' => $this->getView()->getCibleText('error_message_password_isEmpty'))));
$Identical = new Zend_Validate_Identical($data['MP_Password']);
$Identical->setMessages(array('notSame' => $this->getView()->getCibleText('error_message_password_notSame')));
$passwordConfirmation->addValidator($Identical);
}
return parent::isValid($data);
}