Forum Collapse using JQuery

[AdminAdmin is verified member.]

Make Forum item and forum list collapseable

Add new template --> name it as you want (in this i called forum_collapse--> and then put this code

<script type="text/javascript">
jQuery(document).ready(function () {
        jQuery(".forum-list-container .forum-item").show();
        jQuery("tr.subforum-list").show();
        //toggle the componenet with class msg_body
        jQuery("TR.category-header").click(function () {
                    jQuery(this).nextUntil(".forum-list-container .forum-item").slideToggle(100);
                    jQuery(this).next("tr.subforum-list").slideToggle(100);
                    jQuery(this).nextUntil("TR.category-header").slideToggle(100);
                });
});       
</script>

and then...

edit template footer...and find this line

<script type="text/javascript" src="{vb:raw jqueryurl}"></script>
<script type="text/javascript">window.jQuery || document.write('<script type="text/javascript" src="{vb:raw baseurl}/js/jquery/jquery-{vb:raw jqueryversion}.min.js"><\/script>');</script>

{vb:js 1, js/footer-rollup.js}

and then...add this line...after above line

{vb:template forum_collapse}

but there is some kind of bug that i cannot solve it yet...if forum category consist no forum item...it still collapse but it will roll another forum category...anyone can help me with this bug?to optimize my code maybe?

Best Regards

Godarmy