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 validateForm(theForm) {
	// Customize these calls for your form
	// Start ------->
	if (!validRequired(theForm.Name,"Name"))
		return false;
	if (!validRequired(theForm.Address,"Address"))
		return false;
	if (!validRequired(theForm.Postcode,"Postcode"))
		return false;
	if (!validRequired(theForm.Email,"Email"))
		return false;
	if (!validRequired(theForm.TelDay,"Telelphone Day"))
		return false;
	if (!validRequired(theForm.Type,"Type of Function"))
		return false;
	if (!validRequired(theForm.Date,"Date of Function"))
		return false;
	if (!validRequired(theForm.Location,"Location of Function"))
		return false;
	if (!validRequired(theForm.Guests,"Number of guests"))
		return false;
	// <--------- End
	return true;
}