var today=new Date(); 
var week; var date; 
if(today.getDay()==0) week="星期日" ;
if(today.getDay()==1) week="星期一" ;
if(today.getDay()==2) week="星期二"; 
if(today.getDay()==3) week="星期三";
if(today.getDay()==4) week="星期四"; 
if(today.getDay()==5) week="星期五";
if(today.getDay()==6) week="星期六"; 
date=(today.getYear())+"年"+(today.getMonth()+1)+"月"+today.getDate()+"日"+" "; 
document.write("<span style='font-size: 9pt;'>"+date+week+"</span>");