+sqgetGlobalVar('prefs_cache', $prefs_cache, SQ_SESSION );
+sqgetGlobalVar('prefs_are_cached', $prefs_are_cached, SQ_SESSION );
+
+$rg = ini_get('register_globals');
+
+/* if php version >= 4.1 OR (4.0 AND $rg = off) */
+if ( !sqsession_is_registered('prefs_are_cached') ||