| If is not the first request from a user (or a refresh), then
we are being called by the form we emitted last time. In this case
we should process the message being sent in. If it's the clear
command (optional), then clear the message list. Most of the time
we just add the message to the current discussion. Note how the
HTML/HTTP and the logic of keeping messages is kept separate.
If there is no message, do nothing.
|