var timeout	= 500;
var closetimer	= 0;
var ddmenuitem	= 0;
var ddmenuitem_2 = 0;

// open hidden layer
function mopen(id)
{	
	// cancel close timer
	mcancelclosetime();

	// close old layer
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
	if(ddmenuitem_2) ddmenuitem_2.className = '';
	// get new layer and show it
	ddmenuitem = document.getElementById(id);
	ddmenuitem.style.visibility = 'visible';
	
	ddmenuitem_2 = document.getElementById(id + "_1");
	ddmenuitem_2.className = 'over';
}
// close showed layer
function mclose()
{
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
	if(ddmenuitem_2) ddmenuitem_2.className = '';
}

// go close timer
function mclosetime()
{
	closetimer = window.setTimeout(mclose, timeout);
}

// cancel close timer
function mcancelclosetime()
{
	if(closetimer)
	{
		window.clearTimeout(closetimer);
		closetimer = null;
	}
}

// close layer when click-out

function highLightSection ()
{
	var url = window.location.href;
	var section = url.split('/')[3];
	
	if (section == "about") {
		document.getElementById("m1_1").style.backgroundImage = "url('/objects/img/nav/" + section + "_sel.jpg')";
	}
	
	else if (section == "areas") {
		document.getElementById("m2_1").style.backgroundImage = "url('/objects/img/nav/" + section + "_sel.jpg')";
	}
	
	else if (section == "resources") {
		document.getElementById("m3_1").style.backgroundImage = "url('/objects/img/nav/" + section + "_sel.jpg')";
	}
	
	else if (section == "newsroom") {
		document.getElementById("m4_1").style.backgroundImage = "url('/objects/img/nav/" + section + "_sel.jpg')";
	}
	
	else if (section != "") {
		document.getElementById(section).style.backgroundImage = "url('/objects/img/nav/" + section + "_sel.jpg')";
	}
	
	else {}
}