function date_time()
{

var mydate=new Date()
var day=mydate.getDay()
var month=mydate.getMonth()
var daym=mydate.getDate()
var hour   = mydate.getHours();
var minute = mydate.getMinutes();

var ap = "上午";
   if(hour   > 11)
   {
     ap = "下午";
   }
   if
   (hour   > 12)
   {
     hour = hour - 12;
   }
   if(hour   == 0)
   {
     hour = 12;
   }
   if(minute   < 10)
   {
     minute = '0'+minute;
   }
   

var dayarray=new Array("星期日","星期一","星期二","星期三","星期四", "星期五","星期六")
var montharray=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 date_time = dayarray[day]+", "+montharray[month]+" "+daym+"日, " + hour + ':' + minute + " " + ap;

return date_time;
}