asp.net中将js的返回值赋给asp.net控件的小例子

　　<script language ="javascript" type ="text/javascript">

　　var second=0;

　　var minute=0;

　　var hour=0;

　　window .setInterval ("OnlineStayTimes();",1000);

　　function OnlineStayTimes()

　　{

　　second ++;

　　if(second ==60){second =0;minute +=1;}

　　if(minute ==60){minute =0;hour +=1;}

　　var tm=hour+"小时"+minute +"分钟"+second +"秒"

　　document.getElementById ("time").innerHTML=tm;

　　}

　　</script>