function checkGuestbookInfo()
{
	with (window.document.frmGuest) {
		if (isEmpty(FirstName, 'Enter first name')) { return false;
		} else if (isEmpty(LastName, 'Enter last name')) { return false;
		} else if (isEmpty(Email, 'Enter email address')) { return false;
		} else if (isEmpty(Message, 'Enter Message Please')) { return false;
		} else { 
		return true;
		}
	}
}