Index: hierarchical_select.js
===================================================================
--- hierarchical_select.js	(revision 1471)
+++ hierarchical_select.js	(working copy)
@@ -518,7 +518,7 @@
 
   // Construct the URL the request should be made to. GET arguments may not be
   // forgotten.
-  var url = Drupal.settings.HierarchicalSelect.basePath + Drupal.settings.HierarchicalSelect.settings[hsid]['path'];
+  var url = /*Drupal.settings.HierarchicalSelect.basePath +*/ Drupal.settings.HierarchicalSelect.settings[hsid]['path'];
   if (Drupal.settings.HierarchicalSelect.getArguments.length > 0) {
     url += (url.indexOf('?') == -1) ? '?' : '&';
     url += Drupal.settings.HierarchicalSelect.getArguments;
Index: hierarchical_select.module
===================================================================
--- hierarchical_select.module	(revision 1471)
+++ hierarchical_select.module	(working copy)
@@ -457,7 +457,7 @@
            'createNewItems'   => (isset($config['editability']['status'])) ? (int) $config['editability']['status'] : 0,
            'createNewLevels'  => (isset($config['editability']['allow_new_levels'])) ? (int) $config['editability']['allow_new_levels'] : 0,
            'resizable'        => (isset($config['resizable'])) ? (int) $config['resizable'] : 0,
-           'path'             => $config['path'],
+           'path'             => url($config['path']),
         ),
        ),
      )
@@ -1335,22 +1335,7 @@
   );
 
   if (!$js_settings_added && isset($form_state)) {
-    $url = base_path();
-    $url .= variable_get('clean_url', 0) ? '' : 'index.php?q=';
-    // Prefix URL with language path when i18n is enabled and when path-based
-    // negotiation is being used.
-    $negotiation = variable_get('language_negotiation', LANGUAGE_NEGOTIATION_NONE);
-    if (module_exists('i18n') && ($language->prefix != '') && ($negotiation == LANGUAGE_NEGOTIATION_PATH_DEFAULT || $negotiation == LANGUAGE_NEGOTIATION_PATH)) {
-       $url .= $language->prefix . '/';
-    }
-    if (module_exists('purl')) {
-      $options = array();
-      purl_url_outbound_alter($url, $options, '');
-      $url = str_replace('//', '/', '/' . $url);
-    }
-
-    _hierarchical_select_add_js_settings(array('HierarchicalSelect' => array('basePath' => $url, 'getArguments' => drupal_query_string_encode($_GET, array('q')))), $form_state);
-
+    _hierarchical_select_add_js_settings(array('HierarchicalSelect' => array('getArguments' => drupal_query_string_encode($_GET, array('q')))), $form_state);
     $js_settings_added = TRUE;
   }