time display

 1 <script>
 2     // 正常时间显示
 3     function startTimer(){
 4         var today=new Date();
 5         var h=today.getHours();
 6         var m=today.getMinutes();
 7         var s=today.getSeconds();
 8         m=m<10?"0"+m:m;
 9         s=s<10?'0'+s:s;
10         $('#time').html(h+":"+m+":"+s);
11         t=setTimeout(function(){startTimer()},500);
12     }
13 </script>