// JavaScript Document
var timeout4	= 1;
var closetimer4	= 0;
var ddmenuitem4	= 0;
var global_elem4 = 0;

// open hidden layer
function mopen4(id, elem)
{	
	// hide the initial element
	global_elem4 = document.getElementById(elem);
	global_elem4.style.visibility = 'hidden';

	// cancel close timer
	mcancelclosetime4();

	// close old layer
	if(ddmenuitem4) ddmenuitem4.style.visibility = 'hidden';

	// get new layer and show it
	ddmenuitem4 = document.getElementById(id);
	ddmenuitem4.style.visibility = 'visible';
	
}
// close showed layer
function mclose4()
{
	if(ddmenuitem4) ddmenuitem4.style.visibility = 'hidden';
	global_elem4.style.visibility = 'visible';
}

// go close timer
function mclosetime4()
{
	closetimer4 = window.setTimeout(mclose4, timeout4);
}

// cancel close timer
function mcancelclosetime4()
{
	if(closetimer4)
	{
		window.clearTimeout(closetimer4);
		closetimer4 = null;
	}
}

// close layer when click-out
document.onclick = mclose4;