diff --git a/applications/jpip/CHANGES b/applications/jpip/CHANGES
index d865fb60..3e4141ee 100644
--- a/applications/jpip/CHANGES
+++ b/applications/jpip/CHANGES
@@ -5,6 +5,9 @@ What's New for OpenJPIP
 ! : changed
 + : added
 
+September 16, 2011
++ [kaori] enabled stateless requests from the opj_viewers
+
 Septempber 1, 2011
 * [kaori] changed terminating status of opj_server in debug/non-server mode
 
diff --git a/applications/jpip/README b/applications/jpip/README
index 0f053189..c35557f1 100644
--- a/applications/jpip/README
+++ b/applications/jpip/README
@@ -106,10 +106,11 @@ Client:
     % ../opj_dec_server
 
  2. Open image viewers (as many as needed)
-    % java -jar opj_viewer.jar http://hostname/myFCGI JP2_filename.jp2
+    % java -jar opj_viewer.jar http://hostname/myFCGI JP2_filename.jp2 [stateless]
     ( The arguments 
       - http://hostname/myFCGI is the HTTP server URI (myFCGI refers to opj_server by the server setting)
-      - JP2_filename.jp2 is the name of a JP2 file available on the server.)
+      - JP2_filename.jp2 is the name of a JP2 file available on the server.
+      - stateless if stateless request is desired, otherwise session request is implemented
     Image viewer GUI instructions:
       Scale up request: Enlarge the window
       ROI request:      Select a region by mouse click and drag, then click inside the red frame of the selected region