email address verification field

It is great that this module checks to see if a valid email address has been entered, but in many cases I have the need to request the user to enter their email address twice just to be sure they got it right. I have modified this module to incorporate this functionality:

the new
function email_widget($op, &$node, $field, &$node_field) {

function email_widget($op, &$node, $field, &$node_field) {
  switch ($op) {
    case 'form':
      $form = array();
      $form[$field['field_name']] = array(
        '#tree' => TRUE,
        '#weight' => $field['widget']['weight'],
      );

      if ($field['multiple']) {
        $form[$field['field_name']]['#type'] = 'fieldset';
        $form[$field['field_name']]['#title'] = t($field['widget']['label']);
        foreach (range(0,1) as $delta) {
          $default_value = "";
          if (isset($field['widget']['default_value'][$delta]['email'])) {
            $default_value = $field['widget']['default_value'][$delta]['email'];
          }
          $form[$field['field_name']][$delta]['email'] = array(
            '#type' => 'textfield',
            '#title' => '',
            '#default_value' => isset($node_field[$delta]['email']) ? $node_field[$delta]['email'] : $default_value,
            '#required' => $field['required'] ? $field['required'] : FALSE,
            '#maxlength' => 255,
            '#size' => isset($field['widget']['size']) ? $field['widget']['size'] : 60,
            '#description' => isset($field['widget']['description']) ? $field['widget']['description'] : '',
          );
        }
      }
      else if ($field['widget']['verify']) {
        $default_value = "";
        if (isset($field['widget']['default_value'][0]['email'])) {
          $default_value = $field['widget']['default_value'][0]['email'];
        }
        $form[$field['field_name']][0]['email'] = array(
          '#type' => 'textfield',
          '#title' => $field['widget']['label'],
          '#default_value' => isset($node_field[0]['email']) ? $node_field[0]['email'] : $default_value,
          '#required' => $field['required'] ? $field['required'] : FALSE,
          '#maxlength' => 255,
          '#size' => isset($field['widget']['size']) ? $field['widget']['size'] : 60,
          '#description' => isset($field['widget']['description']) ? $field['widget']['description'] : '',
        );

        // verification field
        $form[$field['field_name']][1]['email'] = array(
          '#type' => 'textfield',
          '#title' => 'Verify '.$field['widget']['label'],
          '#default_value' => isset($node_field[0]['email']) ? $node_field[0]['email'] : $default_value,
          '#required' => $field['required'] ? $field['required'] : FALSE,
          '#maxlength' => 255,
          '#size' => isset($field['widget']['size']) ? $field['widget']['size'] : 60,
          '#description' => isset($field['widget']['description']) ? $field['widget']['description'] : '',
        );
      }
      else {
        $default_value = "";
        if (isset($field['widget']['default_value'][0]['email'])) {
          $default_value = $field['widget']['default_value'][0]['email'];
        }
        $form[$field['field_name']][0]['email'] = array(
          '#type' => 'textfield',
          '#title' => $field['widget']['label'],
          '#default_value' => isset($node_field[0]['email']) ? $node_field[0]['email'] : $default_value,
          '#required' => $field['required'] ? $field['required'] : FALSE,
          '#maxlength' => 255,
          '#size' => isset($field['widget']['size']) ? $field['widget']['size'] : 60,
          '#description' => isset($field['widget']['description']) ? $field['widget']['description'] : '',
        );
      }

      return $form;

    case 'validate':
      if (is_array($node_field)) {
          foreach ($node_field as $delta => $item) {
            if ($item['email'] != '' && !valid_email_address($item['email'])) {
              form_set_error($field['field_name'],t('"%mail" is not a valid email address',array('%mail' => $item['email'])));
            }
          }
          if ($field['widget']['verify']) {
            if ($node_field[0]['email'] != $node_field[1]['email'])
              form_set_error($field['field_name'],t('"%mail" does not match %verify',array('%mail' => $node_field[0]['email'], '%verify' => $node_field[1]['email'])));
          }
      }
      break;
  }
}

the new
function email_widget_settings($op, $widget) {

function email_widget_settings($op, $widget) {
  switch ($op) {
    case 'form':
      $form = array();
      $form['size'] = array(
        '#type' => 'textfield',
        '#title' => t('Size'),
        '#default_value' => isset($widget['size']) ? $widget['size'] : 60,
        '#required' => FALSE,
        '#description' => t('Size of textfield'),
      );

      $options = array(
        'mailto' => t('Mailto: Direct link'),
        'form' => t('Contact form'),
      );
      if (module_exists('invisimail')) {
        $options += array('mailto_encrypt' => t('Mailto: Direct link with invisimail encryption'));
      }
      $form['link_type'] = array(
        '#type' => 'radios',
        '#title' => t('Email Link Type'),
        '#default_value' => isset($widget['link_type']) ? $widget['link_type'] : 'mailto',
        '#options' => $options,
      );

      $form['verify'] = array(
        '#type' => 'checkbox',
        '#title' => t('Verify Email Address'),
        '#default_value' => isset($widget['verify']) ? $widget['verify'] : '',
      );

      return $form;

    case 'validate':
      if (!empty($widget['size']) && (!is_numeric($widget['size']) || intval($widget['size']) != $widget['size'] || $widget['size'] <= 0)) {
        form_set_error('size', t('"Size" must be a positive integer.'));
      }
      break;

    case 'save':
      return array('size', 'link_type', 'verify');
  }
}

I know I really need to be doing those "diff" files for stuff like this but I haven't had the time to learn how to do that even though I am sure it is really simple.