function hideLetTermMenu() {
	document.getElementById("letTermIframe").style.display = "none";
	document.getElementById("letTerm").style.display = "none";
}

function showLetTermMenu() {
	document.getElementById("letTermIframe").style.display = "block";
	document.getElementById("letTerm").style.display = "block";
}

function swapimage(id, imagesrc) {
	document.getElementById(id).src = '/images/menu/'+imagesrc;
}