var old = 'z'

var image = new Image();
image.src = "images/arrow.gif";
var image = new Image();
image.src = "images/down.gif";
var image = new Image();
image.src = "images/bullet.gif";
var image = new Image();
image.src = "images/blank.gif";
var image = new Image();
image.src = "images/box1.gif";


var oldMenu = null;
var oldSub = null;

function toggle(menuID)
{
	var ob = document.getElementById(menuID);
	var ar = menuID + "arrow";
	var arID = document.getElementById(ar);

	if(ob.style.display == 'block')
	{
		ob.style.display = 'none';
		arID.src = 'images/arrow.gif';
		oldMenu = null;
	}
	else
	{
		ob.style.display = 'block';
		arID.src = 'images/down.gif';
		if(oldMenu != null)
		{
			document.getElementById(oldMenu).style.display = 'none'
			document.getElementById(oldMenu + "arrow").src ='images/arrow.gif';
		}
		oldMenu = menuID;
	}
	return;
}

function highlight(ob)
{

	if(old != 'z')
	{
	   
		document.getElementById(old).style.background = '#E8D7A0';
		document.getElementById(old).style.background = 'none';
	}
	document.getElementById(ob).style.background = '#FFF';
	old = ob;
	return;
}

function sToggle(subID)
{
	var ob = document.getElementById(subID);
	var ar = subID + "arrow";
	var arID = document.getElementById(ar);

	if(ob.style.display == 'block')
	{
		ob.style.display = 'none';
		arID.src = 'images/arrow.gif';
		oldSub = null;
	}
	else
	{
		ob.style.display = 'block';
		arID.src = 'images/down.gif';
		if(oldSub != null)
		{
			document.getElementById(oldSub).style.display = 'none'
			document.getElementById(oldSub + "arrow").src ='images/arrow.gif';
		}
		oldSub = subID;
	}
	return;
}



function setup()
{
	document.getElementById('nav').style.height = "500px";
	document.getElementById('content').style.height = "510px";
	return;
}

function swap(sec){
	document.getElementById(sec).src = 'images/' + sec + 'Hov.gif';
	return;
}

function unswap(sec){
	document.getElementById(sec).src = 'images/' + sec + 'Alt.gif';
	return;
}