You can look at the spec here: http://www.w3.org/TR/html401/interact/forms.html
Hmmm. I hadn't read the spec. I'm used to dealing with these things on the server side and never really had to think about how they were handled. PHP doesn't seem to be handling it the same way ColdFusion and, as Jeff pointed out, .NET does. All the $_POST value is reporting is the last value. I'll do some more digging on the server side and take another look at my code to make sure I don't have some other bug. Thanks for setting me straight.