It is an Enchanted Device Generator for Ars Magica (4th Edition). It’s built using PHP and Sajax which is a free AJAX toolkit.
It’s been quite an enlightening experiment. The buzz and hype generated around AJAX is quite something, so I thought I’d give it a shot. I started with an idea, a simple script that takes in a few values and does some calculations and presents the result to the user. But, I wanted the user to be able to tweak the values and see the results immediately. That sounds like something AJAX is perfect for.