function joinNBN1()
{
	var obj = document.formjoin;
	if (obj.txtEmailJoin.value == "") {
		alert("Please enter your e-mail address.");
		obj.txtEmailJoin.focus();
		return false;
	}
	else {
		if (!isValidEmail(obj.txtEmailJoin.value)) {
			obj.txtEmailJoin.focus();
			return false;
		}
	}
	return true;
}

function joinNBN2()
{
	var obj = document.formjoin;
	var bError = 0;
	if (obj.txtEmailJoin.value == "") {
		alert("Please enter your e-mail address.");
		obj.txtEmailJoin.focus();
		bError = 1;
	}
	else {
		if (!isValidEmail(obj.txtEmailJoin.value)) {
			obj.txtEmailJoin.focus();
			bError = 1;
		}
	}
	if (bError == 0) obj.submit();
}