greasemonkey to add key to close modal

// ==UserScript==
// @name           escape_to_close_window
// @namespace      Users
// @include        http://www.quickmandarin.com/chinesepinyintable/
// ==/UserScript==

// Any key you press will close the modal for pronounciation

function closeModal() {
  unsafeWindow.hideShutter()
}

document.addEventListener('keyup', closeModal, true);