How to?

I need to create a form for this example in php. I need to have an unlimited number of seats with radio buttons next to each seat for the user to be able to select. BUT, when the user visits this page, it needs to pull the seats taken from the db and cross them out, rendering them inoperable without the radio button... http://www.lanhorizon.com/step17.php is there a way to do this? the logic seems easy, but actually making it work is another story... TIA Jay