* setInterval clearInterval * 用法

代码

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>runcode</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="Author" content="Sheneyan" />
<script language="javascript" src="http://jqueryjs.googlecode.com/files/jquery-1.3.min.js"></script>
<script type="text/javascript">

/**
*  时钟
*  setInterval clearInterval
*  用法
**/

    var i;
    $(document).ready(function() {
     i= setInterval(updateSeconds, 10);
    });

    function updateSeconds() {
        var divs = new Date();
        if (divs.getSeconds() == 0) {
            clearInterval(i);
        }
        jQuery("#timediv").html(divs.getHours() +" "+ divs.getMinutes() +" "+ divs.getSeconds());

    }
</script>
</head>
<body>
<div id="timediv"></div>
</body>
</html>