showReplyBox: function() {
if (this._replyable) {
// Customization: do not show replyContainer: one cannot reply to a annotation note
// this.$replyContainer.show();
this._setFlexible(this.$replyTextarea);
// if the textarea is focused then show the buttons as well
var textareaFocused = document.activeElement === this.$replyTextarea[0];
if (textareaFocused) {
this.$replyButtonsContainer.show();
}
}
},