ajax_example.module.php

<?php

/**
 * Implements hook_menu().
 *
 * Sets up calls to drupal_get_form() for all our example cases.
 *
 * @see menu_example.module
 * @see menu_example_menu()
 */
function ajax_example_menu() {
  $items = array();

  ...

  // Use the AJAX framework outside the context of a form using the use-ajax
  // class. See ajax_example_misc.inc.
  $items['examples/ajax_example/ajax_link'] = array(
    'title' => 'Ajax Link ("use-ajax" class)',
    'page callback' => 'ajax_example_render_link',
    'access callback' => TRUE,
    'file' => 'ajax_example_misc.inc',
    'weight' => 9,
  );
  // Use the AJAX framework outside the context of a form using a renderable
  // array of type link with the #ajax property. See ajax_example_misc.inc.
  $items['examples/ajax_example/ajax_link_renderable'] = array(
    'title' => 'Ajax Link (Renderable Array)',
    'page callback' => 'ajax_example_render_link_ra',
    'access callback' => TRUE,
    'file' => 'ajax_example_misc.inc',
    'weight' => 9,
  );
  // A menu callback is required when using ajax outside of the Form API.
  $items['ajax_link_callback'] = array(
    'page callback' => 'ajax_link_response',
    'access callback' => 'user_access',
    'access arguments' => array('access content'),
    'type' => MENU_CALLBACK,
    'file' => 'ajax_example_misc.inc',
  );