Shoutbox

Hello everyone!

I got a quick question. Is there a way to create some event when a chatwindow comes to focus?
My idea is to change the keyboard layout depending on which person I'm chatting with. For example:

1 Group of Greeks
1 Group of Englishs

So if I bring a chatwindow with a Greek person to the focus, it should change to the greek keyboard layout, for the English to the English keyboard layout, etc.

Any ideas how to create such an event? Or how to use some existing stuff to realise the idea?

Thank you very much in advance!
Regards