{source}
<!-- You can place html anywhere within the source tags -->


<script language="javascript" type="text/javascript">
// You can place JavaScript like this

</script>
<iframe width="560" height="315" src="https://www.youtube.com/embed/JduVwlE04V0?rel=0" frameborder="0" allowfullscreen></iframe>
<?php
// You can place PHP like this

?>
{/source}