// CORUM'S FLYOUT MENUS
function check_ie() {
	if (navigator.appName == "Microsoft Internet Explorer" && navigator.appVersion >= "4.0") {
		return true;
	} else {
		return false;
	}
}

function clearall() {
	if (check_ie()) {
		document.getElementById("about").style.display = "none";
		document.getElementById("discussion").style.display = "none";
		document.getElementById("volunteer").style.display = "none";

		document.getElementById("abouttab").className = "";
		document.getElementById("discussiontab").className = "";
		document.getElementById("volunteertab").className = "";
	}
}

function toggle(x) {
	if (check_ie()) {
		if (document.getElementById(x).style.display != "block") {
			clearall();
			document.getElementById(x).style.display = "block";
			document.getElementById("" + x + "tab").className = "on";
		}
	}
}