非常厉害的javascript 实现指针式时间

<meta http-equiv="Content-Type" content="text/html;charset=UTF-8"> <style> v\:* { behavior: url(#default#vml) } </style> <group id="clock" coordsize="1000,1000" style="width:200;height:200;position:relative"><oval id="outercircle" style="width:1000;height:1000;z-index:10;" fillcolor="gray"></oval><oval id="innercircle" style="position:relative;top:75;left:75;width:850;height:850;z-index:15" fillcolor="white"></oval><line id="hourline" style="position:relative;z-index:20" from="500,500" to="800,800" strokecolor="gray"><stroke startarrow="oval" endarrow="classic" dashstyle="dot" strokecolor="red"></stroke></line><line id="minuteline" style="position:relative;z-index:20" from="500,500" to="500,900" strokecolor="black"><stroke endarrow="classic" dashstyle="dot"></stroke></line><line id="secondline" style="position:relative;z-index:20" from="500,500" to="400,900" strokecolor="black"><stroke endarrow="classic" dashstyle="dot"></stroke></line><span style="position:relative;top:0;left:92;z-index:25">12</span> <span style="position:relative;top:93;left:169;z-index:25">3</span> <span style="position:relative;top:185;left:67;z-index:25">6</span> <span style="position:relative;top:93;left:-40;z-index:25">9</span> <v: roup=""> </v:></group>
[ctrl+a 全选 注:如需引入外部js需刷新才能执行]