// 更新日時を表示する
update = new Date(document.lastModified);

updatemonth = update.getMonth();

moji = new Array("1", "2", "3" , "4" , "5" , "6" , "7" , "8" , "9" , "10" , "11" , "12") ;


updatedate = update.getDate();

updateyear = update.getYear();
if (updateyear < 2000){
updateyear = updateyear + 1900;
}

tag1 = '<div class="update">';
tag2 = "</div>";

updatetext = tag1 + "最後に更新した日: " + updateyear +"年 " + moji[updatemonth] + "月 " + updatedate + "日 " +tag2;

document.write(updatetext);