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

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

	// close old layer
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
	

	// get new layer and show it
	ddmenuitem = document.getElementById(id);
	ddmenuitem.style.visibility = 'visible';

}

//function mheader(id)
//{	
	// cancel close timer
	//mcancelclosetime();
	
	// get new header style and show it
	//ddmenuheader = document.getElementById(id);
	//ddmenuheader.style.borderLeft = '1px solid white';
	//ddmenuheader.style.borderRight = '1px solid white';
	//ddmenuheader.style.borderTop = '1px solid white';
	
//}

// close showed layer
function mclose()
{
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
}

// go close timer
function mclosetime()
{
	closetimer = window.setTimeout(mclose, timeout);
	ddmenuheader.style.borderLeft = '1px solid #181818';
	ddmenuheader.style.borderRight = '1px solid #181818';
	ddmenuheader.style.borderTop = '1px solid #181818';
}

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

// close layer when click-out
document.onclick = mclose;