An XHTML-based, Javascript/CSS-enhanced photo viewer
This is version 3 of the photo viewer app I have had since the spring.03 edition of Schillmania.com (when I got a digital camera and started taking pictures of everything.)
It is designed to degrade gracefully in older and more basic browsers, but provides a nifty interface enhanced by Javascript and CSS (animation and drop shadows are used for visual effect) where supported.