Modal popup windows not posting back locally... (help)

Okay here is the deal, I have a modal popup window, opened via Javascript window.modal. This works fine... however this new window is meant to be a search and select style feature, this does not work. As soon as the page posts back, a brand new popup window opens (same page / new window). This isn't what I expected to be happening. Are modal windows not allowed to update themselves? Are there any work arounds to insure the window updates within itself? I'm going a bit nutty trying to figure this one out. Is there any other way to create a modal window that will work as I expect?

In the head tag of your modal page you can try placing this line of code

<base target=_self>

Ooops that was meant to say in the head section i.e. between the start/finish head tags