The following is a freeware script that demonstrates how to create a simple AJAX shopping cart of items using javascript and the ajax support frameworks: Prototype and script.aculo.us - web 2.0 javascript. Items can be added to the shopping cart easily by dragging them to the shopping cart basket. At the same time the shopping cart basket calculates the total amount on real time. After an user completes the request the script will send the information for processing to the server.