实时显示今年还剩下几天几时几分几秒（js，练习Date的方法）

var date = new Date();

    var year = date.getFullYear();

    var newDate = new Date();

    newDate.setFullYear(year+1);

    newDate.setMonth(0,1);

    newDate.setHours(0,0,0);

    var itime = newDate.getTime()-date.getTime();

    var isecond = parseInt(itime/1000);

    var newDay = parseInt(isecond/24/60/60);

    var modeDay = isecond%(24*60*60);

    var newHour = parseInt(modeDay/60/60);

    var modeHour = modeDay%(60*60);

    var newMinute = parseInt(modeHour/60);

    var modeMinute = modeHour%60;

    var newSecond = parseInt(modeMinute);

    $(".time").text(year+"年还剩"+newDay+"天"+newHour+"时"+newMinute+"分"+newSecond+"秒");

    // document.write(year+"年还剩"+newDay+"天"+newHour+"时"+newMinute+"分"+newSecond+"秒"+"<br/>");

  }

  window.setInterval(getTimeLeft,1000);