function showTm()
{
var _isnMonth = new Array("1月","2月","3月","4月","5月","6月","7月","8月","9月","10月","11月","12月");
var _isnDay = new Array("星期日","星期一","星期二","星期三","星期四","星期五","星期六","星期日");
_today = new Date() ;
_Year=_today.getYear();
_Date=_today.getDate();
if (document.all)
  document.write("今天是："+_Year+"年"+_isnMonth[_today.getMonth()]+_Date+"日   "+_isnDay[_today.getDay()]);
}