function toggle(menuID) {
	if ((document.getElementById(menuID).style.display == "none") || (document.getElementById(menuID).style.display == "")) {
		document.getElementById(menuID).style.display = "block"
	} else if (document.getElementById(menuID).style.display == "block") {
		document.getElementById(menuID).style.display = "none"
	}
}

function appear(menuID) {
	document.getElementById(menuID).style.display = "block"
}

function disappear(menuID) {
	document.getElementById(menuID).style.display = "none"
}