(() => { function CountDown() { var count = 5, tmID, infobox = document.getElementById("start"), time = document.getElementById("info"), atari = document.getElementById("correct"); function countDown() { if (--count == 0) { time.innerHTML = "残念、時間切れです。"; } else { time.innerHTML = count + "秒前"; tmID = setTimeout(countDown, 1000); } } function startCountDown() { tmID = setTimeout(countDown, 1000); infobox.removeEventListener("click", startCountDown, false); atari.addEventListener("click", stopCountDown, false); } function stopCountDown() { clearTimeout(tmID); time.innerHTML = "おめでとう" atari.innerHTML = "正解!!"; atari.removeEventListener("click", stopCountDown, false); } infobox.addEventListener("click", startCountDown, false); } document.addEventListener("DOMContentLoaded", CountDown, false); })();