oog-edit-underline', '\u00A0'));
    underlineButton.setId('Underline Button');
    underlineButton.setTooltip('Underline');
    tb.addChild(underlineButton, true);

    tb.render(goog.dom.getElement('tb'));
    goog.events.listen(tb, EVENTS, logEvent);

    // Hook up checkbox.
    goog.events.listen(goog.dom.getElement('enable_tb'),
        goog.events.EventType.CLICK,
        function(e) {
          var t = goog.now();
          tb.setEnabled(e.target.checked);
          goog.log.info(logger, (e.target.c