$index->showBooks(); break; case 'autors': $index->showAutors(); break; case 'login': $index->showLoginScreen(); break; case 'check': $index->checkLogin(); break; case 'delete': break; case 'edit': if ($_SESSION['user_type'] == 1) { $index->showEditScreen(); } break; case 'logout': $index->logout(); break; case 'manage': if ($_SESSION['user_type'] == 1) { $index->showManagement(); } break; case 'register': $index->showRegister('show'); break; case 'checkr': $index->register();