Index: lib.php
===================================================================
--- lib.php	(revision 441)
+++ lib.php	(working copy)
@@ -26,16 +26,21 @@
      * @param array extra page parameters
      */
     function user_filtering($fieldnames=null, $baseurl=null, $extraparams=null) {
-        global $SESSION;
+        global $SESSION, $CFG;
 
         if (!isset($SESSION->user_filtering)) {
             $SESSION->user_filtering = array();
         }
 
         if (empty($fieldnames)) {
+			if (!empty($CFG->user_filtering_defaults)) {
+				$fieldnames = $CFG->user_filtering_defaults ;
+			}
+			else  {
             $fieldnames = array('realname'=>0, 'lastname'=>1, 'firstname'=>1, 'email'=>1, 'city'=>1, 'country'=>1,
                                 'confirmed'=>1, 'profile'=>1, 'courserole'=>1, 'systemrole'=>1,
                                 'firstaccess'=>1, 'lastaccess'=>1, 'lastlogin'=>1, 'timemodified'=>1, 'username'=>1, 'auth'=>1, 'mnethostid'=>1);
+			}
         }
 
         $this->_fields  = array();