Ok let me dig out the code.
Right i have a php file in the root dir containing the flight board code, i include that with a php include in the frontpage_main.tpl
In the frontpage_main.tpl i have this at the top,
<script type="text/javascript">
setInterval(function() {
$("#fboard").load(location.href+" #fboard>*","");
}, 60000);
</script>
Thats it then just enclose that php include in a div,
so,
<div id="fboard"> <?php include 'path_to_your_file.php';</div>