// Copyright 2006-2007 javascript-array.com

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

// open hidden layer
function mopen(id)
{	
	// cancel close timer
	mclose2();
	mcancelclosetime();

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

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

}
	// open hidden layer level2
	function mopen2(id2)
	{	
		// cancel close timer
		mcancelclosetime();
	
		// close old layer
		if(ddmenuitem2) ddmenuitem2.style.visibility = 'hidden';
	
		// get new layer and show it
		ddmenuitem2 = document.getElementById(id2);
		ddmenuitem2.style.visibility = 'visible';
	
	}
	
// close showed layer
function mclose()
{
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
}
		// close showed layer level 2
		function mclose2()
		{
			if(ddmenuitem2) ddmenuitem2.style.visibility = 'hidden';
		}

// 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;