public List<Customer> validate(String email, String password) {
		List <Customer> outputData = new ArrayList<Customer>();
		try
		{
			// Query DB, add results to output list
			ResultSet res = DAO.validate(email, password);
			if(null != res)
			{
				while (res.next()) {
					Integer zip = res.getInt("zip");
					String zipcode = "";
					if(zip >= 0)
					{
						zipcode = zip.toString();
					}
					outputData.add(new Customer(res.getString("firstName"), res.getString("lastName"),  res.getString("email"), res.getString("password"),
							res.getString("address1"), res.getString("address2") , zipcode,  res.getString("city"), res.getString("state")));
				}
				//clean up database resources
				res.close();
			}
			DAO.closeStatement();
		}
		catch(SQLException ex)
		{
			DataAccessLayer.handleSqlExceptions(ex);
		}
		return outputData;
	}