function validRequired(formField,fieldLabel) {
	var result = true;
	if (formField.value == "")
	{
		alert('Please enter a value for the "' + fieldLabel +'" field.');
		formField.focus();
		result = false;
	}
	return result;
}
function validateNewsletter(Newsletter) {
	// Customize these calls for your form
 // Start ------->
	if (!validRequired(Newsletter.User_Name,"Name of Person Booking the Car"))
		return false;
	if (!validRequired(Newsletter.User_Email,"Email of Person Booking the Car"))
		return false;
	if (!validRequired(Newsletter.From_District,"Trip Info - From - Town"))
		return false;
	if (!validRequired(Newsletter.PickUp_Day,"Pickup date - Day"))
		return false;
	if (!validRequired(Newsletter.PickUp_Month,"Pickup date - Month"))
		return false;
	if (!validRequired(Newsletter.PickUp_Year,"Pickup date - Year"))
		return false;
	// <--------- End
	return true;
}