public static ChatFrame getGroupChatFrame()
    {
        if (CommonData.groupChatFrame == null)
        {
            try
            {
                // ȺĴһγʼʱϢ
                Sounds.getSounds().startMessageAudio();
                
                CommonData.groupChatFrame = (ChatFrame) Class.forName("chat.client.view.ChatFrame").newInstance();
            } catch(Exception e)
            {
                System.err.println("Ⱥ촰쳣");
                return null;
            }
        }
        return CommonData.groupChatFrame;
    }