Conditional Logic Form

The job is a fairly simple remake of an existing form. I have just taken over the web duties on the Vaughans website at [login to view URL] I've had no issue with it apart from one thing. There's a conditional logic form which submits as a cost calculator and runs across a few pages, basically you choose one or more of five options then the next set of questions follow up on what you've chosen previously. So for example if you choose WAREHOUSE on the first page, then the following three options are displayed on the second page; Full height colorbond wall cladding Full height precast concrete walls 2.1 mtr precast concrete dado with colorbond cladding above Although if you choose COOLSTORE Then you get a different set of questions on the next page; EPS coolroom panels This calculator is here if you want to check it out; [login to view URL] I don't know if it would be possible to use any of the existing code that you could rip from the site but if so, that would be fine