Despite what some may argue, Windex doesn't cure everything. To get rid of these oily prints, you'll need to move along.
This dream consists of a single image, rendered twice. One rendering is manipulated with respect to size and positioning. The second simply serves as the oily remains (i.e., the finger prints). jQuery to CSS3 transition support is provied by the excellent jQuery Transit plugin.
All modern browsers. Other browsers are served static, non-moving images.