(() => {
    window.addEventListener("DOMContentLoaded",()=>
	msgArea = document.getElementById("time");)
    

	
    function CountDown(){
	var count = 4, tmID, infobox =document.getElementById("timeout");
	function countdown(){
	    if(--count == 0){
		msgArea.innerText = "bon";
	    }else {
		msgArea.innerText = count + "秒前";
		tmID = setTimeout(countdown, 1000);
	    }
	}
	function startcountdown() {
	    tmID = setTimeout(countdown,1000);
	    infobox.removeEventListener("click",startcountdown, false);
	}
	infobox.addEventListener("click",startcountdown,false);
    }
    document.addEventListener("DOMContentLoaded",CountDown, false);
})();