--- location.admin.inc.ORIGINAL	2010-05-27 10:48:13.000000000 -0400
+++ location.admin.inc	2010-07-14 16:51:28.000000000 -0400
@@ -90,6 +90,8 @@ function location_admin_settings() {
     '#options' => array(
       'target="_blank"' => 'target="_blank"',
       'rel="external"' => 'rel="external"',
+	  'rel="shadowbox"' => 'rel="shadowbox"',
+  	  'rel="lightbox"' => 'rel="lightbox"',
     ),
     '#default_value' => variable_get('location_maplink_external_method', 'target="_blank"'),
     '#description' => t('If you have selected to open map in a new window this controls the method used to open in a new window.  target="_blank" will just work but is not XTHML Strict compliant.  rel="external" is XHTML Strict compliant but will not open in a new window unless you add some jQuery to your site to add the target attribute. If you are unsure leave set to target="_blank"'),