Color and date

Hello everyone ,















I am working on a chat programme and I was wondering how to separate the both usernames for example:















Server is me , and Client is the first man who had connected to me , so I want to be















Server to be in green color , and Client to be in Red















Server(green):Hi















Client(red):hello















Server(green):How you doin'















Client(red):Fine















.........















my second question is both of em' to have minutes and dates for example















27.05.2014 11:30pm Server(green):Hi















27.05.2014 11:31pmClient(red):hello















27.05.2014 11:32pmServer(green):How you doin'















27.05.2014 11:33pmClient(red):Fine