> You could use Avi's Javascript to do the XmlHttp round-trip. It would take
a
> little additional Javascript, with a tweak to the css, to do the
hide/show.
>
> Or is there some underlying design of sessions, continuations, URLs, ids
of
> edited objects, the back button, etc. that would make this difficult?

I actually experimented with using XmlHttp for realtime field validation in
Nemo a little while back. There was an issue concerning the way that Wee
keeps it's page history, but I never looked into it deeply since it was just
a side-experiment. I'll see if I can dig up the code.

- Kevin