if(isset($_COOKIE['user']) && isset($_COOKIE['pass'])){
  $user = trim($this->mycrypt($_COOKIE['user'], $this->key, true), "\0");
  $pass = trim($this->mycrypt($_COOKIE['pass'], $this->key, true), "\0");
  if($this->checkUserAndPass($user, $pass) == ACTION_OK){
    return true;
  }
  else{
    return false;
  }
}