Right, the chat window only needs to refresh whenever someone types and submits something.

However, the chat window needs to refresh not only in the submitter's window, but in all the viewers' windows as well.

Basically, I have to get two different instances of the same Perl script to talk to each other.

I know this is possible in php. There are numerous php chat clients in which scripts talk to each other, only refreshing the chat window when necessary.

Is this possible in perl? Or is this a discovery in which php beats perl?