//  カウントダウン JavaScript ver.2 by 甲斐駒電脳工房
  function Countdown(yy, mm, dd, dayspan, msg1, msg2, msg3, msg4){
    var cdtoday = new Date();
    var xDay = new Date(yy, mm-1, dd);
    cdd = (xDay.getTime() - cdtoday.getTime()) / (24*60*60*1000);
    cdd = Math.ceil(cdd);
    if (cdd > 0){
      document.write(msg1);
      document.write(cdd);
      document.write(msg2);
    }else if (cdd == 0){
      document.write(msg3);
    }else{
      if (cdd * -1 < dayspan || dayspan == 0){
        document.write(msg4);
      }
    }
  }