Drag-n-Drop 'Cart' which updates ASP/VBScript session

Drag-n-Drop 'Cart' which updates ASP/VBScript session

I hope this is the right place!!!

I've looked around and bought a few articles but can't fathom out how to get the functionality I need. Essentially, I can drag/drop items into a basket and remove them but I need more The article I had was: http://www.dmxzone.com/go?14612

I have several items in a list (so like a catalog in an online shop). There is a "add to cart" button.

Rather than clicking on the button (as I would have thought would be easier!), the user needs to drag the button to the "shopping cart"

Once this has been done, the "shopping cart" needs to update to show the new item. The original "add to cart" button needs changing into "already in cart".

The item in the cart also needs to be able to be removed and yes... the "already in cart" button needs to change to a "add to cart button" if it's dragged into the "bin"

Anything that gets places into the cart or removed needs adding to an ASP/VBScript session. So let's say ITEM#1 gets added, the ASP session should show ITEM#1 has been added.

Any help would be great

Thanks,

JJ

P.S. http://jqueryui.com/demos/droppable/#photo-manager is 99% what I want... but it's that extra 1% that's bugging me