hello....
i am currently trying 2 develop a chatserver,it is similar 2 Yahoo's chat server ,the difference is it has only one room.i had done the public chat facility,the problem is with the private chat,
consider the situation, x,y and z are chatting
x sent a private message 4 y,in the y side a small private window named x opened with the message if the window is not opened there,
the problem is if it is already open,how could i know it is opened,i should be able 2 display the message currntly received at y side in the already opened private window