PNGPong: Cross-browser solution for displaying transparent PNG’s
PNGPong is a really good solution for cross browser transparent PNG support. It’s super easy to use. One line of javascript will get you alpha support on all browsers. If the user-agent is IE, pngpong uses it’s own swf to load and display the image. There are more options to do roll overs, call javascript methods, etc. Definitely check it out.
