// Copyright 2006-2007 javascript-array.com

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

// open hidden layer
function mopen(id,li,color)
{	
	// close current menu
	
	// cancel close timer
	mcancelclosetime();

	// close old layer
	if(ddmenuitem) 
	{
		ddmenuitem.style.visibility = 'hidden';
		if(ddmenuitem.parentNode)
		{
			ddmenuitem.parentNode.style.backgroundColor = '';
		}
	}
	
	//set parent item bg color: have to do this here because IE6 doesn't support :hover css
	li.style.backgroundColor = color;
	
	// get new layer and show it
	ddmenuitem = document.getElementById(id);
	ddmenuitem.style.visibility = 'visible';


	var cbos = document.getElementsByTagName('select');

	for(var i=0;i<cbos.length;i++)
	{
		var cbo = cbos[i];
		cbo.style.visibility = "hidden";
	}
}
// close showed layer
function mclose()
{
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
	//hide bg color
	if(ddmenuitem.parentNode)
	{
		ddmenuitem.parentNode.style.backgroundColor = '';
	}
	var cbos = document.getElementsByTagName('select');
	for(var i=0;i<cbos.length;i++)
	{
		var cbo = cbos[i];
		cbo.style.visibility = "visible";
	}
}

// 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;