turing(true);
var logger = new goog.log.getLogger('demo');

var docKh = new goog.events.KeyHandler(document);
goog.events.listen(docKh, 'key', function(e) {
  goog.log.info(logger, 'keyCode: ' + e.keyCode +
              ', charCode: ' + e.charCode +
              ', repeat: ' + e.repeat +
              ', target: ' + e.target +
              ', native event: ' + e.getBrowserEvent().type);
});

var noTabKh = new goog.events.KeyHandler(document.getElementById('no-tab'));
goog.events.listen(noTabKh, goog.even