js实现的时钟

<html>

<head>

<script type="text/javascript">

function startTime()

{

  var today=new Date()

  var h=today.getHours()

  var m=today.getMinutes()

  var s=today.getSeconds() // add a zero in front of numbers<10

   m=checkTime(m)

   s=checkTime(s)

   document.getElementById('txt').innerHTML=h+":"+m+":"+s

    t=setTimeout('startTime()',500) }

    function checkTime(i)

   { if (i<10) {i="0" + i} return i }

</script>

</head>

<body onload="startTime()">

<div id="txt"></div>

</body>

</html>

posted @ 2009-04-29 11:51  非常菜鸟  阅读(217)  评论(1)    收藏  举报