I suspect they show the running page before starting the query and at the bottom they use metarefresh/javascript etc to call the real page and pass it the variables.
the status page is probably serverside coded (not static) as it would need to know what data to pass. There are otherways to do this but this would be easier.
eg
<?php
echo "<script>
document.location='gothere.php?id=$id&status=$status'";
</script>";
?>