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() -1;
myDay     = myD.getDay();
myHours   = myD.getHours();
myMinutes = myD.getMinutes();
mySeconds = myD.getSeconds();

myMess1   = myYear4 + "年" + myMonth + "月" + myDate + "日";
myMess2   = myTbl[myDay] + "曜日";
myMess3   = myHours + "時" + myMinutes + "分" + mySeconds + "秒";
myMess    = myMess1;
document.write( myMess );