Add a jquery effect to this dropdown code
I have this dropdown code that works fine, it does a simple display. But, I'd like to add a simple jQuery effect like slideDown. How would I add that in?

    var timeout    = 500;
    var closetimer = 0;
    var ddmenuitem = 0;

    function jsddm_open()
    {  jsddm_canceltimer();
       jsddm_close();
    ddmenuitem = $(this).find('ul').css('visibility', 'visible');}

    function jsddm_close()
    {  if(ddmenuitem) ddmenuitem.css('visibility', 'hidden');}
    
    function jsddm_timer()
    {  closetimer = window.setTimeout(jsddm_close, timeout);}
    
    function jsddm_canceltimer()
    {  if(closetimer)
    {  window.clearTimeout(closetimer);
       closetimer = null;}}

    $(document).ready(function()
    {  $('#jsddm > li').bind('mouseover', jsddm_open)
       $('#jsddm > li').bind('mouseout',  jsddm_timer)});

    document.onclick = jsddm_close;

Thanks.
Add a jquery effect to this dropdown code
===

I have this dropdown code that works fine, it does a simple display. But, I'd like to add a simple jQuery effect like slideDown. How would I add that in?

    var timeout    = 500;
    var closetimer = 0;
    var ddmenuitem = 0;

    function jsddm_open()
    {  jsddm_canceltimer();
       jsddm_close();
    ddmenuitem = $(this).find('ul').css('visibility', 'visible');}

    function jsddm_close()
    {  if(ddmenuitem) ddmenuitem.css('visibility', 'hidden');}
    
    function jsddm_timer()
    {  closetimer = window.setTimeout(jsddm_close, timeout);}
    
    function jsddm_canceltimer()
    {  if(closetimer)
    {  window.clearTimeout(closetimer);
       closetimer = null;}}

    $(document).ready(function()
    {  $('#jsddm > li').bind('mouseover', jsddm_open)
       $('#jsddm > li').bind('mouseout',  jsddm_timer)});

    document.onclick = jsddm_close;

Thanks.