I have setup the following form, http://www.eandhbaxendale.com/online-enquiries/place-an-order/ so that the submit button on page 3 should not be displayed unless both check boxes on that page are ticked. The problem I have is that when you reach page 3 the submit button is still being displayed, it only hides when they tick one of the boxes then it displays again when they tick the second box.