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

myMonth   = myD.getMonth() + 1;
myDate    = myD.getDate();
myDay     = myD.getDay();

myMess1   =  "【本日は" + myMonth + "月" + myDate + "日<small> " + myTbl[myDay] + "曜日</small>】";
myMess2   = myTbl[myDay] + "曜日";
myMess    = myMess1
document.write( myMess );