Change background position with jQuery

I'd like to change the background position of a CSS-class while hovering a li-element.

HTML:

<div id="carousel">
    <ul id="submenu">
        <li>Apple</li>
        <li>Orange</li>
    </ul>
</div>

CSS:

#carousel { 
    float: left;
    width: 960px;
    height: 360px;
    background: url(../images/carousel.png);
}

Any suggestions on how to do this?