// JavaScript Document

// Copyright 2006-2007 javascript-array.com

var timeOut	= 300;
var closetimer	= 0;
var dropDownMenuItem	= 0;

// open hidden layer
function menuOpen(id)
{	
	// cancel close timer
	menuCancelclosetime();

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

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

}
// close showed layer
function menuClose()
{
	if(dropDownMenuItem) dropDownMenuItem.style.visibility = 'hidden';
}

// go close timer
function menuClosetime()
{
	closetimer = window.setTimeout(menuClose, timeOut);
}

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

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