today=new Date();
function initArray(){
this.length=initArray.arguments.length
for(var i=0;i<this.length;i++)
this[i+1]=initArray.arguments[i] }
var d=new initArray(
"星期日",
"星期一",
"星期二",
"星期三",
"星期四",
"星期五",
"星期六");
document.write(
" ",
today.getYear(),"年",
today.getMonth()+1,"月",
today.getDate(),"日 ",
d[today.getDay()+1],
"" );
    
 <!-- // 添加日期时间脚本  <script language="javascript" type="text/javascript" src="/jsfiles/js/DateJs.js"></script> -->