Survey with jQuery

Hi, We need help with a pretty simple survey built up with some questions and special offers. I've linked to a PDF with all the information needed, and I've also made a quick movie clip which shows how we would like the loading of pages to be. The design will be different than the one in the brief, but it will be similar. The movie clip can be found here: [login to view URL] The PDF can be found here: [login to view URL] We want it to be built with MySQL and PHP. I think the loading has to be done with Javascript, jQuery library and maybe even Ajax, but I'm not sure.