Javascript countdown N seconds after the page automatically jump code

<title>JS Countdown page automatically jump code </title>   

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

    function delayURL(url) {

        var delay = document.getElementById("time").innerHTML;

        if(delay > 0) {

            delay--;

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

        } else {

            window.top.location.href = url;

        }

       t = setTimeout("delayURL('" + url + "')", 1000);

    }
function stop1(){   

t && clearTimeout(t);

}

</script>

<span id="time" style="background: #00BFFF">1000</span> Automatic jump after seconds, if not jump, please click the link below <a href="http://www.baidu.com"> My baidu </a>

<input type="button" value=" Stop jumping " onclick="stop1();">

<script type="text/javascript">

delayURL("http://www.baidu.com");

</script>

The code is very simple, but very practical, friends according to their own needs in their own projects.