Index: /trunk/include/common.inc.php
===================================================================
--- /trunk/include/common.inc.php	(revision 6523)
+++ /trunk/include/common.inc.php	(revision 7501)
@@ -134,5 +134,13 @@
 }
 define('PHPWG_URL', 'http://'.PHPWG_DOMAIN);
-define('PEM_URL', 'http://'.PHPWG_DOMAIN.'/ext');
+
+if(isset($conf['alternative_pem_url']) and $conf['alternative_pem_url']!='')
+{
+  define('PEM_URL', $conf['alternative_pem_url']);
+}
+else
+{
+  define('PEM_URL', 'http://'.PHPWG_DOMAIN.'/ext');
+}
 
 
Index: /trunk/include/config_default.inc.php
===================================================================
--- /trunk/include/config_default.inc.php	(revision 6951)
+++ /trunk/include/config_default.inc.php	(revision 7501)
@@ -515,5 +515,5 @@
 $conf['users_table'] = $prefixeTable.'users';
 
-// If you decide to use external authentication 
+// If you decide to use external authentication
 // change conf below by $conf['external_authentification'] = true;
 $conf['external_authentification'] = false;
@@ -786,3 +786,8 @@
 // enable the synchronization method for adding photos
 $conf['enable_synchronization'] = true;
+
+// PEM url
+$conf['alternative_pem_url'] = '';
+
+
 ?>