protected void fireClientDisconnectEvent(DisconnectOnServerEvent evt) {
    if (clientDisconnectListenerList != null) {
      Object[] listeners = clientDisconnectListenerList.getListenerList();
      for (int i=0; i<listeners.length; i+=2) {
        if (listeners[i]==DisconnectOnServerListener.class) {
          ((DisconnectOnServerListener)listeners[i+1]).OnClientDisconnectEvent(evt);
        }
      }
    }
  }