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

// open hidden layer
function mopen(id)
{	

	// cancel close timer
	mcancelclosetime();

	// close old layer
	if(ddmenuitem) 
	{
		ddmenuitem.style.visibility = 'hidden';
		//old layer link goes back to original color
		document.getElementById(ddmenuitem.id + "_link").style.backgroundColor = "#226642";
	}

	// get new layer and show it

	ddmenuitem = document.getElementById(id);
	ddmenuitem.style.visibility = 'visible';
	//new open layer link goes to hover over color
	document.getElementById(id + "_link").style.backgroundColor = "#E07D44";
		

}
function subopen(id,sid) {
	ddmenuitem = document.getElementById(id);
	ddmenuitem.style.visibility = 'visible';
	ddmenuitem = document.getElementById(sid);
	ddmenuitem.style.visibility = 'visible';
}
// close showed layer
function mclose()
{
	if(ddmenuitem) 
	{
		ddmenuitem.style.visibility = 'hidden';
		//on close, layer link goes to original color
		document.getElementById(ddmenuitem.id + "_link").style.backgroundColor = "#226642";
	}
}

// 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
document.onclick = mclose;