JavaScriptでイベントを発生させる
var _e = document.createEvent("KeyboardEvent");
_e.initKeyEvent("keydown", true, true, null, false, false, false, false, 65, 0);
document.getElementById("dummy").dispatchEvent(_e);
var _e = document.createEvent("KeyboardEvent");
_e.initKeyEvent("keydown", true, true, null, false, false, false, false, 65, 0);
document.getElementById("dummy").dispatchEvent(_e);