// JavaScript Document
<!--
var isMenuVisible = false;
var previousID;
function detectBrowser () {
	if(navigator.appName == "Microsoft Internet Explorer") {
		return "IE";
	} else {
		return "Non-IE";
	}
}
function viewSub(id) {
	if (detectBrowser() == "IE") {
		if(!isMenuVisible) {
			window[id].style.visibility = "visible";
			isMenuVisible = true;
			previousID = id;
		} else {
			window[previousID].style.visibility = "hidden";
			isMenuVisible = false;
			viewSub(id);
		}
	} else {
		if(!isMenuVisible) {
			document.getElementById(id).style.visibility = "visible";
			isMenuVisible = true;
			previousID = id;
		} else {
			document.getElementById(previousID).style.visibility = "hidden";
			isMenuVisible = false;
			viewSub(id);
		}
	}
}
function hideSub() {
	if (detectBrowser() == "IE") {
		window[previousID].style.visibility = "hidden";
		isMenuVisible = false;
	} else {
		document.getElementById(previousID).style.visibility = "hidden";
		isMenuVisible = false;
	}
}