Stamp = new Date(); 
document.write("今天是" + Stamp.getYear()+"年"+(Stamp.getMonth() + 1) +"月"+Stamp.getDate()+ "日");
now = new Date() 
document.write(" ")
if (now.getDay() == 5) document.write("星期五")
if (now.getDay() == 6) document.write("星期六")
if (now.getDay() == 0) document.write("星期日")
if (now.getDay() == 1) document.write("星期一")
if (now.getDay() == 2) document.write("星期二")
if (now.getDay() == 3) document.write("星期三")
if (now.getDay() == 4) document.write("星期四")