nested accordion collapses when i select child item

nested accordion collapses when i select child item


i've built a nested accordion, which functions partially. it uses the
heading-div structure (see code example below). when i select a parent
accordion, it expands fine & shows the collapsed child items below.
but when i select a child item to expand it, the parent closes.
the example is live here:
http://www.messengerwebdesign.com/dishingitup/?page=nutrition
here's the javascript:
<script type="text/javascript">
    jQuery().ready(function(){
        // customized accordion
        jQuery('#nutrition1, #nutrition2, #appetizer, #soup, #bread,
#seafood, #beef, #beans, #dessert, #eggs, #pasta, #casserole,
#poultry, #pork, #vegetables').accordion({
            active: '.selected',
            selectedClass: 'active',
            animated: "bounceslide",
            header: "h3, h4",
            alwaysOpen: false,
            autoheight: false
        });
        // bind to change event of select to control first and seconds
accordion
        // similar to tab's plugin triggerTab(), without an extra method
        var accordions = jQuery('#nutrition1, #nutrition2, #appetizer,
#soup, #bread, #seafood, #beef, #beans, #dessert, #eggs, #pasta,
#casserole, #poultry, #pork, #vegetables');
        jQuery('#switch select').change(function() {
            accordions.accordion("activate", this.selectedIndex-1 );
        });
        jQuery('#close').click(function() {
            accordions.accordion("activate", -1);
        });
        jQuery('#switch2').change(function() {
            accordions.accordion("activate", this.value);
        });
        jQuery('#enable').click(function() {
            accordions.accordion("enable");
        });
        jQuery('#disable').click(function() {
            accordions.accordion("disable");
        });
        jQuery('#remove').click(function() {
            accordions.accordion("destroy");
        });
    });
</script>
and a shortened & simplified version of the html, without stylistic
classes:
<div id="nutrition1">
<h3>Appetizers &amp; Sides</h3>
<div>
<div class="appetizer">
<h4>Item 1a</h4>
<div>Content 1a</div>
</div>
<h4>Item 1b</h4>
<div>Content 1b</div>
<!--end #appetizer-->
</div>
<h3>Soups, Stews &amp; Chowders</h3>
<div>
<div class="soup">
<h4>Item 2a</h4>
<div>Content 2a</div>
</div>
<h4>Item 2b</h4>
<div>Content 2b</div>
</div>
<!--end #soup-->
</div>
<h3>Bread &amp; Pizza</h3>
<div>
<div class="bread">
<h4>Item 3a</h4>
<div>Content 3a</div>
</div>
<h4>Item 3b</h4>
<div>Content 3b</div>
</div>
<!--end #bread-->
</div>
</div>
i've variously tried changing the autoheight, alwaysOpen, adding a
line for clearStyle, commenting out the various select functions,
changing the active parameter, all with no luck.
thanks in advance for your suggestions,
--cz