That didn't work.
Here is the url with parameters:
http://funkymonkeycoupons.com/signup-patron.php?npoLinkName=Cub-Scout-Pack-127&FindNPOSearchButton2=Select+NPO
And here is what the code validated to:
http://funkymonkeycoupons.com/signup-patron.php??invalid=true
I'm attaching the file. Thanks.