myTbl     = new Array("日","月","火","水","木","金","土");
myD       = new Date();

myYear    = myD.getYear()
myYear4   = (myYear < 2000) ? myYear+1900 : myYear;
myMonth   = myD.getMonth() + 1;
myDate    = myD.getDate();
myDay     = myD.getDay();

myMess   = myYear4 + "年" + myMonth + "月" + myDate + "日";
document.write( '最終更新日：' + myMess );