void ShowGamePanel()
 {
     if (m_game == null)
     {
         m_game = new GamePanel(tfGamePanel);
         m_game.setPerent(con);
     }
     m_current = m_game;
 }
 void ShowGiftBagPanel()
 {
     if (m_giftBag == null)
     {
         m_giftBag = new GifBagPane(tfGiftBagPanel);
         m_giftBag.setPerent(con);
     }
     m_current = m_giftBag;
 }
 void ShowSystemPanel()
 {
     if (m_system == null)
     {
         m_system = new SystemPanel(tfSystemPanel);
         m_system.setPerent(con);
     }
     m_current = m_system;
 }