// Copyright 2006-2007 javascript-array.com
var timeout	= 500;
var closetimer	= 0;
var item	= 0;
// Open hidden layer
function mopen(id)
{	
	// Cancel close timer
	mcancelclosetime();
	// Close old layer
	if(item) item.style.visibility = 'hidden';
	// Get new layer and show it
	item = document.getElementById(id);
	item.style.visibility = 'visible';
}
// Close showed layer
function mclose()
{
	if(item) item.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;