public static function logout()
 {
     $context = Model_Context::instance();
     $JinboSession = new Model_Session();
     $logout_url = $context->getProperty('service.jinbo_api_url') . "/logout/";
     $api_key = $context->getProperty('service.jinbo_api_key');
     $_j_sess_id = $_COOKIE[$context->getProperty('service.jinbonet_session_name')];
     list($jinbo_sess_id, $jinbo_domain) = explode("/", $_j_sess_id);
     if (!$_SESSION['user'][uid] && !$jinbo_sess_id) {
         return false;
     }
     $params = "remote_addr=" . $_SERVER['REMOTE_ADDR'] . "&api_key=" . $api_key;
     if ($_SESSION['user'][uid]) {
         $params .= "&uid=" . $_SESSION['user'][uid];
     }
     if ($jinbo_sess_id) {
         $params .= "&sessionid=" . $jinbo_sess_id;
     }
     $jinbo_session = $JinboSession->request($logout_url, $params);
     unset($_SESSION);
     session_destroy();
     return true;
 }
 private static function initialize()
 {
     global $memcache;
     self::$mc = $memcache;
     self::$context = Model_Context::instance();
 }