transm.js 1.3 allows you to add programmable image transitions to your webpages. It uses unobtrusive javascript to keep your code clean. It works in all the major browsers - Mozilla Firefox 1.5+, Opera 9+, Safari 2+, Chrome 3+ and IE 6+. Works also on older browsers supporting JS 1.5 and images and filter or opacity, else it'll degrade and your visitors won't notice a thing.