Index: /trunk/include/functions_session.inc.php
===================================================================
--- /trunk/include/functions_session.inc.php	(revision 8728)
+++ /trunk/include/functions_session.inc.php	(revision 11951)
@@ -100,10 +100,6 @@
   ;
 
-  return vsprintf(
-    "%02X%02X",
-    explode($separator,$_SERVER['REMOTE_ADDR'])
-  );
-}
-
+  return substr(md5($_SERVER['REMOTE_ADDR']), 0, 4);
+}
 /**
  * this function returns