function overlay(item)
	{
	fade("menu_overlay_" + item, 0);
	for(i = 0; i <= 70; i++)
		{
		setTimeout("fade('menu_overlay_" + item + "', " + i + ")",(i * 3));
		}
	}

function fade(id, opacity)
	{
	var opac = document.getElementById(id).style;

	opac.opacity = (opacity / 100);
	opac.MozOpacity = (opacity / 100);
	opac.KhtmlOpacity = (opacity / 100);
	opac.filter = "alpha(opacity=" + opacity + ")";
	}