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

function jsddm_open()
	{	jsddm_canceltimer();
		jsddm_close();
		ddmenuitem = $(this).find('ul').eq(0).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()
	{	$('#menu-sup > li').bind('mouseover', jsddm_open);
		$('#menu-sup > li').bind('mouseout',  jsddm_timer);});

document.onclick = jsddm_close;