Add JQUERY Accordion Panel in Quick Lunch

<script type="text/javascript" src="latest Jquery js file"></script>

<script type="text/javascript">

jQuery(function($) {

    $('.s4-ql li ul').hide();

    $('.s4-ql ul li').hover(function() {

        $(this).find('a:first').next().slideToggle();

    }, function() {

        $(this).find('a:first').next().slideToggle();

    }).find('ul').each(function(index) {

        var $this = $(this);

        $this.parent().find('a:first .menu-item-text').append(['<span style=\'float:right;font-size:0.8em;\'>(', $this.children().length, ')</span>'].join(''));

    });

});

</script>




http://www.lifeinsharepoint.co.uk/2011/12/15/quick-tip-jquery-accordion-quick-launch/