$start = isset($_REQUEST['start']) ? intval($_REQUEST['start']) - 1 : 0;
        $length = isset($_REQUEST['length']) ? intval($_REQUEST['length']) : 10;
        $userId = isset($_REQUEST['u']) ? intval($_REQUEST['u']) : api_get_user_id();
        $friendId = $userId;
        $array = SocialManager::getWallMessagesPostHTML($userId, $friendId, null, $length, $start);
        if (!empty($array)) {
            ksort($array);
            $html = '';
            for ($i = 0; $i < count($array); $i++) {
                $post = $array[$i]['html'];
                $comment = SocialManager::getWallMessagesHTML($userId, $friendId, $array[$i]['id']);
                $html .= '<div class="panel panel-info"><div class="panel-body">' . $post . $comment . '</div></div>';
            }
            $html .= Display::div(Display::url(get_lang('SeeMore'), api_get_self() . '?u=' . $userId . '&a=listWallMessage&start=' . ($start + $length + 1) . '&length=' . $length, array('class' => 'nextPage')), array('class' => 'next'));
            echo $html;
        }
        break;
        // Read the Url using OpenGraph and returns the hyperlinks content
    // Read the Url using OpenGraph and returns the hyperlinks content
    case 'readUrlWithOpenGraph':
        $url = isset($_POST['social_wall_new_msg_main']) ? $_POST['social_wall_new_msg_main'] : '';
        $html = '';
        if (SocialManager::verifyUrl($url) == true) {
            $html = Security::remove_XSS(SocialManager::readContentWithOpenGraph($url));
        }
        echo utf8_decode($html);
        break;
    default:
        echo '';
}
exit;