How to overload a specific layer of CSS3 layered multiple background images

Question

Possible Duplicate:
Change only one of multiple backgrounds on hover

If you had a CSS declaration like this:

.selector {
    background: url(image.png), url(image2.png);
}

and on :hover you wanted to change just the first layer, e.g.

.selector:hover {
    background: url(image3.png), url(image2.png);
}

Is there a way to update the image to image3.png without having to redeclare the rest of the stack?

Answer 1

Unfortunately, no, there isn't any way to do that.