How to update every second from db?
<p>I have to build a site like an auction-site:</p>

<p>I Have a detail page from items where a countdown should run down.</p>

<p>In this page nearly every second a update must be possible without a postback for the user: </p>

<ul>
<li>coundown must be reset</li>
<li>money of aucton must be updated</li>
<li>gridView with last bidders must be updated</li>
</ul>

<p>What kind of timer should I use for the countdown?
How can I update every second from DB? ( Ajax? )
How can I update the values / gridView?</p>
