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

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

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;