how to remain the count down time not beginning at first each time?
<pre><code>$(function() {
    var count = 20;
    countdown = setInterval(function() {
        $("p.countdown").html(count + "seconds remailing!");

        if (count == 0) {
            window.location = 'http://stackoverflow.com/';
        }

        count--;
    }, 1000);
});​

&lt;p class="countdown"&gt;
</code></pre>

<p>Each time when i refresh the browser, the count down is beginning at 20. i want to when i refresh the browser. the count number not beginning at 20 each time. it begins from the actually time it beginning, how to do some changes to the code?</p>
