function navSub1ON() {
	var div = document.getElementById('subnav');
	div.style.display = "block";
	var div = document.getElementById('subnav2');
	div.style.display = "none";
}
function navSub2ON() {
	var div = document.getElementById('subnav2');
	div.style.display = "block";
	var div = document.getElementById('subnav');
	div.style.display = "none";
}

function navSubOFF() {
	var div = document.getElementById('subnav');
	div.style.display = "none";
	var div = document.getElementById('subnav2');
	div.style.display = "none";
}

function update_referrer()
{
	if(document.getElementById("referrer"))
	{
		document.getElementById("referrer").value = document.referrer;
	}
}