var ddmenuTimeout         = 500;
var ddMenuCloseTimer		= 0;
var ddmenuitem      = 0;

function dropDownMenu_open()
{	dropDownMenu_canceltimer();
	dropDownMenu_close();
	ddmenuitem = $(this).find('ul').eq(0).css('visibility', 'visible');}

function dropDownMenu_close()
{	if(ddmenuitem) ddmenuitem.css('visibility', 'hidden');}

function dropDownMenu_timer()
{	ddMenuCloseTimer = window.setTimeout(dropDownMenu_close, ddmenuTimeout);}

function dropDownMenu_canceltimer()
{	if(ddMenuCloseTimer)
	{	window.clearTimeout(ddMenuCloseTimer);
		ddMenuCloseTimer = null;}}

$(document).ready(function()
{	$('.jsddm > li').bind('mouseover', dropDownMenu_open);
	$('.jsddm > li').bind('mouseout',  dropDownMenu_timer);
	$(this).click(dropDownMenu_close);
});