} else {
                $msg .= Display::return_message(get_lang('LanguageDirectoryNotWriteableContactAdmin'), 'error');
            }
        } else {
            if ($language_id_exist === false) {
                $msg .= Display::return_message(get_lang('LanguageParentNotExist'), 'error');
            }
        }
    } else {
        $msg .= Display::return_message(get_lang('FormHasErrorsPleaseComplete'), 'error');
    }
}
Display::display_header($language_name);
echo $msg;
if (isset($_POST['SubmitAddDeleteLanguage'])) {
    $rs = SubLanguageManager::remove_sub_language($_GET['id'], $_GET['sub_language_id']);
    if ($rs === true) {
        Display::display_confirmation_message(get_lang('TheSubLanguageHasBeenRemoved'));
    } else {
        Display::display_error_message(get_lang('TheSubLanguageHasNotBeenRemoved'));
    }
}
// ckeck_if_is_parent_of_sub_language($parent_id)===false
//
if (isset($_GET['action']) && $_GET['action'] == 'definenewsublanguage') {
    $text = $language_name;
    $form = new FormValidator('addsublanguage', 'post', 'sub_language_add.php?id=' . Security::remove_XSS($_GET['id']) . '&action=definenewsublanguage');
    $class = 'add';
    $form->addElement('header', '', $text);
    $form->addElement('text', 'original_name', get_lang('OriginalName'), 'class="input_titles"');
    $form->addRule('original_name', get_lang('ThisFieldIsRequired'), 'required');