private void addCustomerButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_addCustomerButtonActionPerformed
         JFrame frame = new JFrame("Add new Customer");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        JPanel contentPane = new CustomerInputForm(controller);
        frame.setContentPane(contentPane);
        frame.pack();   
        frame.setLocationByPlatform(true);
        frame.setVisible(true);
    }//GEN-LAST:event_addCustomerButtonActionPerformed