weeks=new Array("Sun","Mon","Tue","Wed","Thu","Fri","Sat");
today=new Date();
y=today.getFullYear();
m=today.getMonth()+1;
d=today.getDate();
w=weeks[today.getDay()];
document.open();
document.write( y + '/'+ m +'/' + d + '<span>' + w + '</span>');
document.close();