I'm almost sure this is impossible, but I thought I'd ask before I gave up on the idea.
Most people know about the sprite technique, which is essentially that one combines all their style images (like bullet graphics, and icons, for example) into one larger image file and refers to them via CSS by the coordinates. This saves http requests and bandwidth.
What I'd like to know is whether a similar technique can be applied to images meant to be background images that repeat. For example, if I have a geocities super awesome homepage with a chainlink fence background on the body and a butterfly background in the content window, is there a way to combine those into the same image, reference to them by their coordinates, AND make them repeat in the background?