--- search_block.module.bak	2008-12-21 23:32:25.000000000 +0100
+++ search_block.module	2008-12-21 23:47:31.000000000 +0100
@@ -43,7 +43,7 @@
  * Implementation of hook_form()
  */
 function search_block_restrict_form() {
-  $types = node_get_types($op = 'types', $node);
+  $types = node_get_types($op = 'types');
 
   foreach ($types as $key => $array) {
     $enabled = variable_get('search_block_'. $key, FALSE);
@@ -105,7 +105,9 @@
     $type = $form['old_type']['#value'];
   }
   
+  if (!empty($type))
   $enabled = variable_get('search_block_'. $type, FALSE);
+  else $type = 'search_block_type_not_defined';
 
   switch ($form_id) {
     case 'node_type_form':
@@ -138,7 +140,7 @@
           $form['search_block_set']['search_block'] = array(
             '#type' => 'checkbox',
             '#title' => t('Restrict this node from the search index'),
-            '#default_value' => $form['#node']->search_block,
+            '#default_value' => isset($form['#node']->search_block) ? $form['#node']->search_block : 0,
             '#description' => t('Enable this option to hide this node from the search index.'),
           );
         }
@@ -321,4 +323,4 @@
 
   // Update index
   search_index($node->nid, 'node', $text);
-}
\ No newline at end of file
+}