public static function assertAdmin($c)
 {
     $ua = Model::load('UserAccess', null, false);
     if (self::$u->id < 1 || self::$u->getAuth(self::$u->id) < $ua->getLevel('admin')) {
         Session::down();
         $c->redirect("user/login");
     }
 }
 public function logout()
 {
     if (1 || isset($_POST['logout'])) {
         $u = CurrentUser::getUser();
         Session::down();
         $this->logoutSuccess($u);
         $this->redirect('');
     }
 }