function openSub(obj, id, closed, opened)
{
	var o = document.getElementById("menu" + id);
	if (obj.className == closed)
	{
		obj.className = opened;
		o.style.display = "";
	}
	else
	{
		obj.className = closed;
		o.style.display = "none";
	}
}

function openSub2(obj, id)
{
	var o = document.getElementById("menu" + id);
	if (o.style.display == "none")
	{
		obj.className = "menuItem menuMinus";
		o.style.display = "";
	}
	else
	{
		obj.className = "menuItem menuPlus";
		o.style.display = "none";
	}
}