Drupal: Add Google Analytics event to a form

gistfile1.php

<?php

function your_module_form($form, &$form_state) {

  // Your form definition

  // Google Analytics event
  $form['#attached'] = array(
    'js' => array(
      '(function($){
        $("#your-form-id").submit(function(e){
          if (typeof _gaq !== "undefined") {
          _gaq.push(["_trackEvent", "Category", "Action", "Value"]);
          }
        })
      })(jQuery);' => array('type' => 'inline')
    )
  );

  return $form;
}