// JavaScript Document
// Copyright 2006-2007 javascript-array.com

var timeout	= 300;
var opendelay	= 900;
var closetimer	= 0;
var ddmenuitem	= 0;

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

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

	// get new layer and show it
	ddmenuitem = document.getElementById(id);
	//ddmenuitem.style.visibility = 'visible';
	opentimer = window.setTimeout(avaa, opendelay);
}

function avaa(){
  opendelay = null;
  ddmenuitem.style.visibility = 'visible';
}

// close showed layer
function mclose()
{
  opendelay = 900;
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
}

// go close timer
function mclosetime()
{
  mcancelopentime();
  
	closetimer = window.setTimeout(mclose, timeout);
}

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

function mcancelopentime()
{
	if(opendelay)
	{
		window.clearTimeout(opentimer);
		opendelay = 900;
	}
}

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