multiple css in jQuery accordion widget

Hello everybody,

I've got a problem using two CSS style files in the jQuery Accordion Menu Widget. I want to have the head-buttons to be like they are right now and the submenu items to be different. You can watch the example here: http://bit.ly/Xq1ELe
I've tried several things, but none of them worked. Can someone please tell me what to do?

In the script.js (jQuery) is the following code:

var g = jQuery('.art-layout-glare-image');
    jQuery(window).bind('resize', function () {
        g.each(function () {
            var i = jQuery(this);

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