mySysDate=new Date();
myYear=mySysDate.getFullYear();
myMonth=mySysDate.getMonth();
myDate=mySysDate.getDate();
day=new Array("日","月","火","水","木","金","土");
myDay=day[mySysDate.getDay()];

document.write(myYear,"年",myMonth+1,"月",myDate,"日","（",myDay,"）")