MainMenu = function()
{

	var opened = null;
	var closeDelay = null;

	return {
		init: function(obj)
		{
			var r;
			var l, a, t, c;
			var i;

			r = document.getElementById(obj.root);

			l = r.getElementsByTagName("li");

			for (i = 0; i < l.length; i++)
			{
				c = l[i].getElementsByTagName("a");
				c[c.length - 1].className = "last";
				a = l[i].getElementsByTagName("a")[0];
				t = l[i].getElementsByTagName("div")[0];
				a.obj = t.obj = { callee: a, target: t };
				a.onmouseover = t.onmouseover = function()
				{
					MainMenu.open(this.obj);
				};
				a.onmouseout = t.onmouseout = function()
				{
					MainMenu.close();
				};
				t.style.display = "none";
			}

		},
		open: function(obj)
		{
			this.actualClose();
			this.opened = obj;
			obj.target.style.display = "block";
			clearTimeout(this.closeDelay);
		},
		close: function()
		{
			var f;
			if (this.opened == null)
			{
				return;
			}
			f = function()
			{
				MainMenu.actualClose();
			};
			this.closeDelay = setTimeout(f, 1000);
		},
		actualClose: function()
		{
			if (this.opened == null)
			{
				return;
			}
			this.opened.target.style.display = "none";
			this.opened = null;
		}
	};

} ();