DHTML and Database Fun

I had a fun, quick project over the last few days: take school statistics and test scores and create a searchable database for the Denver Post. You can see the results in any news story that the Post is running about the current CSAP scores. A direct link to only the application is here.
I used PHP/MySQL for the backend, parsing some large Excel spreadsheets to get at the data. Then I created a front-end that combines JavaScript and PHP. I used the currently-popular “XMLHttpRequest” and “innerHTML” JavaScript tricks to make plain HTML seem more alive. I’ve done a lot of projects with these techniques, but never one so visible.