$form->addElement('textarea', 'description', get_lang('Description'));
//the first url with id = 1 will be always active
if (isset($_GET['url_id']) && $_GET['url_id'] != 1) {
    $form->addElement('checkbox', 'active', null, get_lang('Active'));
}
$defaults['url'] = 'http://';
$form->setDefaults($defaults);
$submit_name = get_lang('AddUrl');
if (isset($_GET['url_id'])) {
    $url_id = intval($_GET['url_id']);
    $num_url_id = UrlManager::url_id_exist($url_id);
    if ($num_url_id != 1) {
        header('Location: access_urls.php');
        exit;
    }
    $url_data = UrlManager::get_url_data_from_id($url_id);
    $form->addElement('hidden', 'id', $url_data['id']);
    $form->setDefaults($url_data);
    $submit_name = get_lang('AddUrl');
}
if (!api_is_multiple_url_enabled()) {
    header('Location: index.php');
    exit;
}
$tool_name = get_lang('AddUrl');
$interbreadcrumb[] = array("url" => 'index.php', "name" => get_lang('PlatformAdmin'));
$interbreadcrumb[] = array("url" => 'access_urls.php', "name" => get_lang('MultipleAccessURLs'));
Display::display_header($tool_name);
if (isset($_GET['action'])) {
    switch ($_GET['action']) {
        case 'show_message':
$errorMsg = '';
$UserList = array();
$message = '';
if (isset($_POST['form_sent']) && $_POST['form_sent']) {
    $form_sent = $_POST['form_sent'];
    $UserList = $_POST['sessionUsersList'];
    if (!is_array($UserList)) {
        $UserList = array();
    }
    if ($form_sent == 1) {
        if ($access_url_id == 0) {
            header('Location: access_url_edit_users_to_url.php?action=show_message&message=' . get_lang('SelectURL'));
            exit;
        } elseif (is_array($UserList)) {
            $result = UrlManager::update_urls_rel_user($UserList, $access_url_id);
            $url_info = UrlManager::get_url_data_from_id($access_url_id);
            if (!empty($result)) {
                $message .= 'URL: ' . $url_info['url'] . '<br />';
            }
            if (!empty($result['users_added'])) {
                $message .= '<h4>' . get_lang('UsersAdded') . ':</h4>';
                $i = 1;
                $user_added_list = array();
                foreach ($result['users_added'] as $user) {
                    $user_info = api_get_user_info($user);
                    if (!empty($user_info)) {
                        $user_added_list[] = $i . '. ' . api_get_person_name($user_info['firstname'], $user_info['lastname'], null, null, null, null, $user_info['username']);
                        $i++;
                    }
                }
                if (!empty($user_added_list)) {