function writeHEADER(){
 nowTime = new Date();
 nowHour = nowTime.getHours();
if ((nowHour >= 18) || (nowHour <= 5)){
  document.write("<img src='/common/img/header_nighttime_e.jpg' width='880' height='130' alt='Asakusa Kannon Senso-ji'>");}
if ((nowHour >= 6) && (nowHour <= 17)){
  document.write("<img src='/common/img/header_daytime_e.jpg' width='880' height='130' alt='Asakusa Kannon Senso-ji'>");}
}