public void update() {

    // CReate the event to fire
    GwtEvent<TabUpdateEvent.Handler> g =
        new GwtEvent<TabUpdateEvent.Handler>() {

          @Override
          public com.google.gwt.event.shared.GwtEvent.Type<Handler> getAssociatedType() {
            // TODO Auto-generated method stub
            return TabUpdateEvent.GetType();
          }

          @Override
          protected void dispatch(Handler handler) {
            // TODO Auto-generated method stub
            handler.onUpdate(null);
          }
        };

    // Fire a tabupdate event in the login/register
    loginSection.fireEvent(g);
    registerSection.fireEvent(g);
  }