if (document.images) {
    img1 = new Image();
    img1.src = "/images/order-parts-onlinehover.gif";

    img2 = new Image();
    img2.src = "/images/general/general-hover.gif";

    img3 = new Image();
    img3.src = "/images/layout/navigation/nav-hover.gif";

}

$(document).ready(function() {
    $('.rollover').css({ 'display': 'block', 'cursor': 'hand' });
    $('.rollover').each(function() {
        var $span = $('> span', this);
        $span.css({ 'opacity': '0', 'display': 'block', 'position': 'absolute' });

        $(this).hover(function() {
            $span.stop().fadeTo(200, 1);
        }, function() {
            $span.stop().fadeTo(1000, 0);
        });
    });
});