Error on every other form submission

[Anon]

The script I'm working on has a lot going on so I'll try and distill the problem.

I'm building a calendar consisting of 3 visible months. I have a button set to show more dates which should retrieve the next 3 months.

When I submit dates initially start_date and end_date everything is fine. However when I submit the next set of dates, again, only a new start_date and end_date everything goes wacky.

Shouldn't the script function the same way every time? I'm not passing an array or anything.

I realize a diagnosis without code could be difficult, but it's a pretty large script.
Any ideas on where to look?

Thanks in advance.

[Anon]

There's really no way to tell. I'd print out your start_date and end_date to the screen and make sure they are valid and aren't getting messed up somehow...

---John Holmes...