> I've been searching, but apparently not phrasing my search right, so I'm
> going to float a question out here in the meantime...
> I'm wondering how to go about refreshing the content of a control (say, a
> selector) without refreshing the page. For example, if I have these selects:
> Company: <pick a company>
> Contact: <pick a contact>
> When they pick the company, I'd like to refill the contact selector based on
> who works for that company, but I don't want to refresh the form since the
> record hasn't been saved yet.
> I know I could use a hidden form or some embedded component to do an HTTP
> pull, but we have a live support app that we use and it seems like it might
> be keeping the connection to the server open until it's unloaded from the
> browser, so I was curious if that's doable, and how big a resource hog it
> is. We'll only have occasional instances where we'd need to do this sort of
> thing, but in those cases it would probably be worth it. I've been poking
> around in the live support code to find out how they do their refreshes, but
> I'm kind of new to PHP and I haven't spotted the answer yet.
> Thanks in advance...