Ajaxify

gistfile1.php

<?php

function my_module_special_form($form, &$form_state, $node = FALSE) {
  $node_id = (is_object($node) && is_numeric($node->nid)) ? $node->nid : '';

  // Ajaxify.
  if (module_exists('context') && _tableau_is_active_context(array('ajaxify_premium')) {)
    $form['#prefix'] = '<div id="formwrapper">';
    $form['#suffix'] = '</div>';
    // Submit button.
    $form['save']['#ajax'] = array(
      'callback' => 'my_module_special_form_ajax_submit',
      'wrapper' => 'formwrapper',
      'method' => 'replace',
      'effect' => 'fade',
    );
    /*
    $form['submit'] = array(
      '#ajax' => array(
        'callback' => 'my_module_special_form_submit',
        'wrapper' => 'form-register-message'
      ),
    );
    */
  }
  
  /**
   * Accept the form submit via AJAX.
   *
   * @param  [type] $form        [description]
   * @param  [type] &$form_state [description]
   *
   * @return [string]
   *   HTML output back to the browser.
   */
  function my_module_special_form_ajax_submit($form, &$form_state) {
    // Be sure to validate.
    drupal_validate_form('my_module_special', $form, $form_state);
    if (form_get_errors()) {
      $form_state['rebuild'] = TRUE;
      return $form;
    }
    // Process form.
    my_module_special_submit($form, $form_state);
  
    return array(
      '#markup' => 'Success. JAVASCRIPT EVENT BEACON.'
    );
  }