如何使用jQuery对PNG序列进行动画处理(通过滚动或触发动画)

More and more I am seeing an effect where pngs are loaded into a series of DIVs (or one div) and then sequenced though frame by frame either based on button click or based on scroll. I've tried to peek at the code, and I understand that javascript is doing the heavy lifting, but I'm still a bit lost, are there any tutorials on this technique? examples?More and more I am seeing an effect where pngs