{source}
<!-- You can place html anywhere within the source tags -->
<script type="text/javascript" charset="utf-8" async src="https://api-maps.yandex.ru/services/constructor/1.0/js/?um=constructor%3A8696de7a3a1f545d7b1035bf281a46ffb95756aced3a1660f749f8c5254c1cfa&amp;width=533&amp;height=290&amp;lang=ru_RU&amp;scroll=true"></script>

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

</script>
<?php
// You can place PHP like this

?>
{/source}