So it comes with a redirect function:
<script type="text/javascript">
function redirect() {
setTimeout(function() {
window.location = "/captiveportal/index.php";
}, 100);
}
</script>
When the form is filled out, you click next, then it closes out after you're done.
I've changed the index.php to hello.html, and it redirects to hello.html but it's just the portal page without the fancy graphics, as opposed to the test html page for information on what happened.