This is the webapp for the KGS Json client. You may want to view the source to see example code for sending and receiving messages. To build your own KGS web client, install this webapp on a JSP web server. Then write your javascript client, install it on the same server so that it can call the /access service, and run. A protocol reference is available that explains how to communicate with /access, and lists the different messages used.

Let me know how things go.

Json Output: