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


function nav_open()
{	nav_canceltimer();
	nav_close();
	ddmenuitem = $(this).find('ul').eq(0).css('visibility', 'visible');}

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

function nav_timer()
{	closetimer = window.setTimeout(nav_close, timeout);}

function nav_canceltimer()
{	if(closetimer)
	{	window.clearTimeout(closetimer);
		closetimer = null;}}

$(document).ready(function()
{	$('#header .main_nav > li').bind('mouseover', nav_open);
	$('#header .main_nav > li').bind('mouseout',  nav_timer);});


 
document.onclick = nav_close;


if(document.location.protocol=='http:'){
 var Tynt=Tynt||[];Tynt.push('bgKx6KSuOr37h_adbi-bpO');
 (function(){var s=document.createElement('script');s.async="async";s.type="text/javascript";s.src='http://tcr.tynt.com/ti.js';var h=document.getElementsByTagName('script')[0];h.parentNode.insertBefore(s,h);})();
}