This javascript cut & paste code snippet will allow you to have fireworks appear every time a viewer clicks on anything. This script is really subtle and can be used as a little attention getter. You can change the script to show your images on click as well!
Simply Cut and Paste Script code
Be sure to properly place script positions in
HEAD & BODY of html
You
may see a working example by clicking here
This script has been in the JavaScript Source Public Library.