There are a fair few tutorials out there which create (what sounds like) what you are looking for.
- Tutorialzine : An AJAX Based Shopping Cart with PHP, CSS & jQuery
- WebResourcesDepot : Creating A Slick Ajaxed Add-To-Basket With jQuery And PHP
- WebResourcesDepot : Ajaxed Sliding Shopping Cart with jQuery
Have a read of them, along with the PHP Manual for Sessions, and see what you can come up with. If you make a start, and then get stuck, come back, ask some more questions (with examples and code samples) and we will do what we can to help.
Lucanos
2010-10-08 08:49:34