这是一个基于AJAX的聊天室程序。它在DWR例子的基础上加以改进增加一些新的功能包括emmoticon(表情),bbcode,消息持久化,粘性信息,自动分解url和image链接。 -This is an AJAX based chat room program. On the basis of the DWR example to be improved to increase the number of new features including emmoticon (expressi