/**
  * Проверка и выполнение авторизации
  */
 private function do_login()
 {
     $page_home = new Page_Home($this->web_driver);
     if (!$page_home->check_login()) {
         echo "<br>Already logged in<br>";
         return;
     }
     $page_login = $page_home->click_login();
     $page_login->submit_form();
 }