function showMenu (name) {
		if (is_ie4up) {
			eval("d" + name + ".style.visibility = 'visible'");
			eval("dlist" + name + ".style.visibility = 'visible'");
		}
		if (is_nav4up) {
			eval("document.getElementById('d" + name + "').style.visibility = 'visible'");
			eval("document.getElementById('dlist" + name + "').style.visibility = 'visible'");
		}
	}

	function hideMenu (name) {
		if (is_ie4up) {
			eval("d" + name + ".style.visibility = 'hidden'");
			eval("dlist" + name + ".style.visibility = 'hidden'");
		}
		if (is_nav4up) {
			eval("document.getElementById('d" + name + "').style.visibility = 'hidden'");
			eval("document.getElementById('dlist" + name + "').style.visibility = 'hidden'");
		}
	}

	function hideAll () {
		var i;
		for (i = 0; i < 7; i++) hideMenu ("menu" + (i + 1));
	}