function setOpacity(obj, opacity) {
		opacity = (opacity == 100) ? 99.999 : opacity;
		opacity = (opacity < 0) ? 0 : opacity;

		// IE/Win
		obj.style.filter = "alpha(opacity:" + opacity + ")";

		// Safari<1.2, Konqueror
		obj.style.KHTMLOpacity = opacity / 100;

		// Older Mozilla and Firefox
		obj.style.MozOpacity = opacity / 100;

		// Safari 1.2, newer Firefox and Mozilla, CSS3
		obj.style.opacity = opacity / 100;
	}

	function menuOn(department) {
		setOpacity(document.getElementById(department + "Menu"), 90);
		document.getElementById(department + "Menu").style.display = "block";
	}

	function menuOff(department) {
		document.getElementById(department + "Menu").style.display = "none";
	}