$I = new AcceptanceTester($scenario);
$I->amOnPage('/index.html');
$I->executeJS("
var script = document.createElement('script');
script.type = 'text/javascript';
script.src = 'code.jquery.com/jquery-1.8.3.js';
document.head.appendChild(script);
");
$I->executeJS('$(window).trigger($.Event("keydown", { keyCode: 39 }));');