ublic function processLoginForm($form)
	{
  $values = $form->getValues();
  $user = Environment::getUser();


  if (!$user->isLoggedIn()){
  try {
  $user->setExpiration('+ 1440 minutes', FALSE);
  $user->login($values['username'], $values['password']);
  $this->redirect("Homepage:default");
   }
  catch (AuthenticationException $e){
  $form->addError($e->getMessage());
  }



  }
  else {
  $form->addError("Nejprve se odhlašte.");
  }
  }