Index: vertical_tabs.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/vertical_tabs/vertical_tabs.module,v
retrieving revision 1.1.2.22
diff -u -p -r1.1.2.22 vertical_tabs.module
--- vertical_tabs.module	22 Aug 2009 20:07:54 -0000	1.1.2.22
+++ vertical_tabs.module	1 Nov 2009 20:19:24 -0000
@@ -95,7 +95,7 @@ function vertical_tabs_add_vertical_tabs
 }
 
 /**
- * Implementation of hook_form_alter.
+ * Implementation of hook_form_alter().
  */
 function vertical_tabs_form_alter(&$form, $form_state, $form_id) {
   // Check to see which form we are in. Since the node form's form id is not
@@ -103,16 +103,7 @@ function vertical_tabs_form_alter(&$form
   // stuck implementing the global form_alter and checking if there is the
   // string node_form in the form id.
   if (preg_match('/_node_form$/', $form_id)) {
-    $node_type = $form['type']['#value'];
-
-    // The $fieldsets array is a list of all supported fieldsets in core
-    // for the node form, and their JavaScript summary creators.
-    $fieldsets = vertical_tabs_fieldsets($node_type);
-
-    if (vertical_tabs_add_vertical_tabs($form, $fieldsets)) {
-      drupal_add_js(drupal_get_path('module', 'vertical_tabs') .'/vertical_tabs.node_form.js');
-      $form['vertical_tabs']['#weight'] = 100;
-    }
+    $form['#pre_render'][] = 'vertical_tabs_node_form_pre_render';
   }
 
   if ($form_id == 'node_type_form' && $form['#node_type']->type && !$form['#programmed']) {
@@ -130,6 +121,24 @@ function vertical_tabs_form_alter(&$form
   }
 }
 
+/**
+ * Pre-render function for the node form.
+ */
+function vertical_tabs_node_form_pre_render($form) {
+  $node_type = $form['type']['#value'];
+
+  // The $fieldsets array is a list of all supported fieldsets in core
+  // for the node form, and their JavaScript summary creators.
+  $fieldsets = vertical_tabs_fieldsets($node_type);
+
+  if (vertical_tabs_add_vertical_tabs($form, $fieldsets)) {
+    drupal_add_js(drupal_get_path('module', 'vertical_tabs') .'/vertical_tabs.node_form.js');
+    $form['vertical_tabs']['#weight'] = 100;
+  }
+
+  return $form;
+}
+
 function vertical_tabs_node_type_form($node_type) {
   module_load_include('inc', 'node', 'node.pages');