public function dounlockemails(array $data, Form $form)
 {
     if (!$form->validate()) {
         return $this->redirectBack();
     }
     Session::set('Guestbook-ShowEmails', true);
     // Add a flash message for the user
     if (method_exists('Page_Controller', 'addMessage')) {
         Page_Controller::addMessage(_t('GuestbookController.EMAILPROTECTIONUNLOCKED', 'Successfully unlocked E-mail addresses'), 'Success');
     }
     return $this->redirect($this->Link());
 }