function showMenu(id, active) {
	document.getElementById(id).style.visibility = 'visible';
	var color = id.substr(5);
	if (active != color) {
		$(color).addClass(color);
	}
}

function hideMenu(id, active) {
	document.getElementById(id).style.visibility = 'hidden';
	var color = id.substr(5);
	if (active != color) {
		$(color).removeClass(color);
	}
}