Image loading method with a bit of jQuery. Should be easy enough to convert to a non-API dependent method.
How it works
Takes advantage of how the browser loads images by creating a placeholder image then after-the-fact appending the actual image from a "data-src" attribute.
Tested in Firefox, Chrome, Opera, and IE flavors 7-9. IE 7 and 8 will simply have the images "magically" appear.
I feel weird about this since this pattern has got to be out there. But my aspect is released under the MIT License.