Nope. You would have to make another div inside the area and position it absolutly to 0,0
Note: I do not test code. I just write it off the top of my head. There might be bugs in it! But if any thing I gave you the overall theory of what you need to accomplish. Also there are plenty of other ways to accomplish this same thing. I just gave one example of it. Other ways might be faster and more efficient.
Supposedly the CSS3 spec allows for multiple background images in a single element. Could be very useful (e.g. sliding doors with one element instead of two), but it's probably still a ways away from being usable.