function navSub1ON() {
	var div = document.getElementById('navSub1');
	div.style.display = "block";
	var div = document.getElementById('navSub2');
	div.style.display = "none";
}
function navSub2ON() {
	var div = document.getElementById('navSub1');
	div.style.display = "none";
	var div = document.getElementById('navSub2');
	div.style.display = "block";
}

function navSubOFF() {
	var div = document.getElementById('navSub1');
	div.style.display = "none";
	var div = document.getElementById('navSub2');
	div.style.display = "none";
}