Index: search_config.module
===================================================================
--- search_config.module	(revision 4457)
+++ search_config.module	(working copy)
@@ -113,6 +113,15 @@
           }
         }
 
+        $disabled_vocabularies = variable_get('search_config_disable_vocabulary', array());
+        if (count($disabled_vocabularies)) {
+          $result = db_query("SELECT t.tid FROM {vocabulary} v LEFT JOIN {term_data} t USING (vid) WHERE v.vid IN (%s)", implode(',', $disabled_vocabularies));
+
+          while ($row = db_fetch_object($result)) {
+            $terms[$row->tid] = $row->tid;
+          }
+        }
+
         // FIXME: What about multiple hierarchy categories?
         foreach ($taxonomy as $vocab => $term) {
           foreach ($term as $k => $v) {
@@ -238,6 +247,15 @@
           '#default_value' => variable_get('search_config_disable_category', array()),
           '#description' => t('Disable searching by the selected categories')
         );
+        $form['search_config']['category']['search_config_disable_vocabulary'] = array(
+          '#type' => 'select',
+          '#title' => t('Vocabularies'),
+          '#options' => search_config_get_vocabularies(),
+          '#size' => 10,
+          '#multiple' => TRUE,
+          '#default_value' => variable_get('search_config_disable_vocabulary', array()),
+          '#description' => t('Disable searching by the selected vocabularies')
+        );
       }
 
       // Node types
@@ -341,3 +359,17 @@
     }
   }
 }
+
+/**
+ *
+ */
+function search_config_get_vocabularies() {
+  $result = db_query('SELECT v.vid, v.name FROM {vocabulary} v ORDER BY v.weight, v.name');
+
+  $vocabularies = array();
+  while ($voc = db_fetch_object($result)) {
+    $vocabularies[$voc->vid] = $voc->name;
+  }
+
+  return $vocabularies;
+}