Actually, I've tried it several ways... passing each, passing both, not passing any, not passing one or the other...

I also tried putting the retrieval code at the top of the next .pl so it would pull the session ID. It keeps coming back as "1" (which my guess would be that means "true" or "false".

Thanks for everyone's replies. Unfortunately, I am running out of time and have opted to go with an uglier method just so I can meet my deadline (well, actually, the deadline was February 1st) as best I can. I hope to get back to it after the crunch of user testing and see if I can figure out a cleaner, more maintainable code.

I appreciate everyone's help!