{source}
<!-- You can place html anywhere within the source tags -->
<iframe width="1000" height="450" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" src="http://maps.google.com/maps/ms?msa=0&amp;msid=218237646036659963692.0004b871a63f9e196d896&amp;hl=es&amp;ie=UTF8&amp;ll=52.490953,13.389346&amp;spn=0.050955,0.077108&amp;t=h&amp;output=embed"></iframe><br /><small>Ver <a target="_blank" href="http://maps.google.com/maps/ms?msa=0&amp;msid=218237646036659963692.0004b871a63f9e196d896&amp;hl=es&amp;ie=UTF8&amp;ll=52.490953,13.389346&amp;spn=0.050955,0.077108&amp;t=h&amp;source=embed" style="color:#0000FF;text-align:left">Berlín durante la Guerra Fría</a> en un mapa más grande</small>

<script language="javascript" type="text/javascript">
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</script>
<?php
    // You can place PHP like this
    
?>
{/source}