diff -up modal_noderef/modal_noderef.module modal_noderef_/modal_noderef.module
--- modal_noderef/modal_noderef.module	2010-01-13 18:38:06.000000000 -0500
+++ modal_noderef_/modal_noderef.module	2010-09-09 07:48:43.000000000 -0400
@@ -111,8 +111,10 @@ function modal_noderef_field_links($fiel
   $options = array('attributes' => array('class' => 'edit-in-modal'));
   foreach ($fields as $name => $is_allowed) {
     $url_name = str_replace('_', '-', $name);
+    $url = 'node/add/' . $url_name;
+    drupal_alter('modal_noderef_field_links_url', $url);
     if (!empty($is_allowed)) {
-      $links[] = l($node_types[$name]->name, 'node/add/' . $url_name, $options);
+      $links[] = l($node_types[$name]->name, $url, $options);
     }
   }
   return $links;