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copied!<pre><code>var i = window.setInterval( function(){ ajaxUpdate(10); }, 1000 ); </code></pre> <p>This will call ajaxUpdate every second, until such a time it is stopped. </p> <p>And if you wish to stop it later: </p> <pre><code>window.clearInterval( i ); </code></pre> <p>If you wish to only run it <em>once</em> however, </p> <pre><code>var i = window.setTimeout( function(){ ajaxUpdate(10); }, 1000 ); </code></pre> <p>Will do the trick, and if you want to stop it running before it gets around to running once</p> <pre><code>window.clearTimeout(i); </code></pre> <p>The "window" prefix is not strictly nessecary, but its a good idea, because you never know when somebody else might like to create something else with the same name in visible scope that behaves differently. </p> <p>For a complete reference on this, I always find MDC Very Helpful: </p> <ul> <li><a href="https://developer.mozilla.org/en/DOM/window.setInterval" rel="noreferrer">MDC: window.setInterval</a></li> <li><a href="https://developer.mozilla.org/en/DOM/window.clearInterval" rel="noreferrer">MDC: window.clearInterval</a></li> <li><a href="https://developer.mozilla.org/en/DOM/window.setTimeout" rel="noreferrer">MDC: window.setTimeout</a></li> <li><a href="https://developer.mozilla.org/en/DOM/window.clearTimout" rel="noreferrer">MDC: window.clearTimeout</a></li> </ul> <p>Also, you may wish to read this article on timers by John Resig, </p> <ul> <li><a href="http://ejohn.org/blog/how-javascript-timers-work/" rel="noreferrer">ejohn.org : How Javascript Timers work </a></li> </ul>

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