if (!$type->locked) {
    $form['identity']['type'] = array(
      '#title' => t('Type'),
      '#type' => 'textfield',
      '#default_value' => $type->type,
      '#maxlength' => 32,
      '#required' => TRUE,
      '#description' => t('The machine-readable name of this content type. This text will be used for constructing the URL of the <em>create content</em> page for this content type. It is recommended that this name consists only of lowercase letters, numbers, and <strong>underscores</strong>. Dashes are not allowed. Underscores will be converted into dashes when constructing the URL of the <em>create content</em> page. The name must be unique to this content type.'),
    );
  }
  else {
    $form['identity']['type'] = array(
      '#type' => 'value',
      '#value' => $type->type,
    );
    $form['identity']['type_display'] = array(
      '#title' => t('Type'),
      '#type' => 'item',
      '#value' => theme('placeholder', $type->type),
      '#description' => t('The machine-readable name of this content type. This field cannot be modified for system-defined content types.'),
    );
  }