function writeDateInfo()
{
         var day="";
         var month="";
         var ampm="";
         var ampmhour="";
         var myweekday="";
         var year="";
         mydate=new Date();
         myweekday=mydate.getDay();
         mymonth=mydate.getMonth()+1;
         myday= mydate.getDate();
         myyear= mydate.getYear();
         year=(myyear > 200) ? myyear : 1900 + myyear;
         if(myweekday == 0)
         weekday=" 星期日";
         else if(myweekday == 1)
         weekday=" 星期一";
         else if(myweekday == 2)
         weekday=" 星期二";
         else if(myweekday == 3)
         weekday=" 星期三";
         else if(myweekday == 4)
         weekday=" 星期四";
         else if(myweekday == 5)
         weekday=" 星期五";
         else if(myweekday == 6)
         weekday=" 星期六";
         document.write(year+"年"+mymonth+"月"+myday+"日 "+weekday);
}