Whiteboard is a project mainly written in JAVASCRIPT and PHP, it's free.
ajax and canvas based whiteboard
used:
GPLv3
Copy files in a http server directory and call http://<yourserver>/<yourpath>/init_db.php
to initialize the database.
ajax.php
-- serverside ajax handlerconfig.php
-- database configurtioninit_db.php
-- initialize the databasejquery.periodicalupdater.js
whiteboard.html
-- main whiteboard file, call with browserwhiteboard.js
-- clientside whiteboardwhiteboard.php
-- serverside whiteboard