时间戳转换倒计时

function toDay(myDate){

var nowDate =new Date();

  var myDateO =new Date(myDate);

  var s1= nowDate.getTime();

  var hour= (s1-myDate)/1000/60/60;

  var day=hour/24;

  var month=day/30;

  var year=month/12;

  if(year<1){

if(month<1){

if(day<1){

if(hour<1){

return "刚刚";

            }else{

return parseInt(hour)+"小时前";

            }

}else{

return parseInt(day)+"天前";

        }

}else{

return parseInt(month)+"月前";

      }

}else{

return parseInt(year)+"年前";

  }

alert(total);

  return formatwdate;

}