// Copyright 2006-2007 javascript-array.com

var timeout	= 500;
var timeout2	= 500;
var closetimer	= 0;
var closetimer2	= 0;
var ddmenuitem	= 0;
var ddmenuitem2	= 0;

// open hidden layer
function mopen(id)
{	
	// cancel close timer
	mcancelclosetime();
    mclose2();
	// close old layer
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
	
	// get new layer and show it
	ddmenuitem = document.getElementById(id);
	if(ddmenuitem) ddmenuitem.style.visibility = 'visible';
}
// open hidden 2nd layer
function mopen2(id)
{	
	// cancel close timer
	mcancelclosetime();

	// close old layer
	if(ddmenuitem2) ddmenuitem2.style.visibility = 'hidden';

	// get new layer and show it
	ddmenuitem2 = document.getElementById(id);
	if(ddmenuitem2) ddmenuitem2.style.visibility = 'visible';

}
// close showed layer
function mclose()
{
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
}
function mclose2()
{
	if(ddmenuitem2) ddmenuitem2.style.visibility = 'hidden';
}
// go close timer
function mclosetime()
{
	closetimer = window.setTimeout(mclose, timeout);
}
// go close timer
function mclosetime2()
{
	closetimer2 = window.setTimeout(mclose2, timeout2);
}
// cancel close timer
function mcancelclosetime()
{
	if(closetimer)
	{
		window.clearTimeout(closetimer);
		closetimer = null;
	}
}
function mcancelclosetime2()
{
	if(closetimer2)
	{
		window.clearTimeout(closetimer2);
		closetimer2 = null;
	}
}

// go close timer
function mclosetimeall()
{
	mclose();
	mclose2();
}

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