move.html

<pre id='log'>
</pre>
<script src="/socket.io/socket.io.js"></script>
<script src="/js/nxt.js"></script>
<script>
  var logEl = document.getElementById('log');
  function log(msg) {
    if (logEl) {
      logEl.textContent = msg + "\n" + logEl.textContent;
    }
  }

  ///////////////////////////////////////////////////////////////

  function play(e) {
    e.preventDefault();
    log("Turning motor A through 760 degrees");
    // port, power, mode, reg_mode, turn_ratio, run_state, tacho_limit
    nxt.set_output_state(nxt.MOTOR_A, 100, nxt.MOTORON, nxt.REGULATION_MODE_IDLE, 0, nxt.MOTOR_RUN_STATE_RUNNING, 760)
    window.onmousemove = play;
  }
  function stop() {
    window.onmousemove = null;
  }
  window.onmousedown = play;
  window.onmouseup = stop;

  ///////////////////////////////////////////////////////////////

  log("Connecting");
  socket.on('welcome', function (data) {
    log('Connected');
  });
</script>