I was trying to write a perl program that creates a pop-up window [web browser, this is a cgi thing] with a form in it and then processes the form data. What stuck in my brain is: how do I get the form data to go back to the original perl script that called it? I knew this could be done, I've seen it in action before. And I know its a common question for perl newbies like me. Then I came upon this:

It seems like the harder the problem, the simpler the solution. Doh! I'll try this later and see if it works as advertised.