function authenticate() {
	var accesscode = document.getElementById('passcode');
	var paymentdiv = document.getElementById('payment');
	if (accesscode.value=="payrj")
	{
		paymentdiv.style.visibility = "visible";
	}
	else
	{
		alert("The access code you entered does not appear to be valid");
		accesscode.value = "";
	}
}