<!-- 把下面代码放到<body>区中-->
<script LANGUAGE="JavaScript">
<!-- document.write("<center><font size=+1><b>")
now = new Date() //定义新对象，new具有Date的性质
document.write("<center><small>")
if (now.getDay() == 5) document.write("今天是星期五")
if (now.getDay() == 6) document.write("今天是星期六")
if (now.getDay() == 0) document.write("今天是星期日")
if (now.getDay() == 1) document.write("今天是星期一")
if (now.getDay() == 2) document.write("今天是星期二")
if (now.getDay() == 3) document.write("今天是星期三")
if (now.getDay() == 4) document.write("今天是星期四")
document.write("</small></center>")
//--> </script>