Index: ahah_helper.module
===================================================================
--- ahah_helper.module	(revision 53443)
+++ ahah_helper.module	(revision 53537)
@@ -33,6 +33,14 @@
     'access callback'  => TRUE,
     'type'             => MENU_CALLBACK,
   );
+  $items['admin/settings/ahah_helper'] = array(
+    'title' => 'AHAH helper',
+    'description' => 'Adjust AHAH helper settings.',
+    'page callback'    => 'drupal_get_form',
+    'page arguments'   => array('ahah_helper_admin_settings'),
+    'access arguments' => array('administer site configuration'),
+    'type'             => MENU_NORMAL_ITEM,
+  );
   return $items;
 }
 
   // If the form is being rebuilt due to something else than a pressed button,
@@ -193,14 +201,44 @@
   // Get the JS settings so we can merge them.
   $javascript = drupal_add_js(NULL, NULL, 'header');
   $settings = call_user_func_array('array_merge_recursive', $javascript['setting']);
+  $settings = _ahah_get_configured_settings_list($settings);
 
   drupal_json(array(
     'status'   => TRUE,
     'data'     => theme('status_messages') . drupal_render($form_item),
-    'settings' => array('ahah' => $settings['ahah']),
+    'settings' => $settings, 
   ));
 }
 
+/**
+ * Module configuration form
+ */
+function ahah_helper_admin_settings() {
+    
+  $form = array();
+  $form['drupal_settings'] = array(
+    '#type' => 'fieldset',
+    '#title' => t('Drupal settings'),
+  );
+  $form['drupal_settings']['ahah_helper_drupal_settings'] = array(
+    '#type' => 'textarea',
+    '#title' => t('Merged Drupal settings'),
+    '#default_value' => variable_get('ahah_helper_drupal_settings', ''),
+    '#description' => t('By default this module updates just ahah setting. 
+        If there are other modules that need to update their Drupal.settings branch 
+        after AJAX reload you can list them here. Please use one setting name per line.
+        You don\'t need to add line ahah. It\'s added automatically. 
+        For example, if you use tabledrag behavior and date_popup element in your form
+        you might want to add following settings:
+        
+        <pre>
+tableDrag
+datePopup
+        </pre>'),
+  );
+  
+  return system_settings_form($form);   
+}
 
 //----------------------------------------------------------------------------
 // Private functions.
@@ -256,6 +294,23 @@
   }
 }
 
+function _ahah_get_configured_settings_list($settings) {
+  $new_settings = array(
+    'ahah' => $settings['ahah']
+  );
+  $configured_settings = variable_get('ahah_helper_drupal_settings', '');
+  if (!empty($configured_settings)) {
+    $configured_settings = explode("\r\n", $configured_settings);
+    foreach ($configured_settings as $setting) {
+      $setting = trim($setting);
+      if (!empty($setting) && !empty($settings[$setting])) {
+        $new_settings[$setting] = $settings[$setting];
+      }
+    }
+  }
+  
+  return $new_settings;
+}
 
 //----------------------------------------------------------------------------
 // Additional PHP functions.
@@ -321,3 +376,4 @@
   
   return $form;
 }
+