一个倒计时的JS

一个倒计时的JS

剩余时间：<i id="expireTime"></i>
<script type="text/javascript">
	var expire = 2412169;
	var expireTime = function(expires){
		if(expires > 0){
			var second = expires;
		}else{
			var second = "0 分";
			return second;
		}
		var day = hour = min = "";
		if(second>86400){
			day = Math.floor(second/86400)+"天 ";
			second = second%86400;
		}
		if(second>3600){
			hour = Math.floor(second/3600)+"时 ";
			second = second%3600;
		}
		if(second>60){
			min = Math.floor(second/60)+"分 ";
			second = second%60;
		}
		second = second+"秒";
		return day+hour+min+second;
	}
	
	var timeEle = document.getElementById("expireTime");
	
	var timer = window.setInterval(function(){
		timeEle.innerHTML = expireTime(expire--);
		if(expire<0){
			clearInterval(timer);
		}
	},1000);
</script>