JS倒计时

 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 = expire-- + '秒';  if(expire<0){   clearInterval(timer);  } },1000);</script>