Hello! Warning NOOBIE.

I want to create a very basic form for my shopify site. It's just a dropdown of the US states and once you select and submit, you're redirected to a new page according to your state.

Here is the page:

http://www.vivomasks.com/pages/masqu...event-planners

The only state I have 'working' is New York. But if you select that state, it redirects the user to:

http://www.vivomasks.com/pages/?stat...event-planners

And returns a 404 because actual working url is http://www.vivomasks.com/pages/new-y...event-planners

Any easy fix for this? It's only HTML now, do I need php to make this work?