$o .= <<< EOT
<h2>IRC chat</h2>
<p><a href="http://tldp.org/HOWTO/IRC/beginners.html" target="_blank">A beginner's guide to using IRC. [en]</a></p>
-<iframe src="http://webchat.freenode.net?channels=$channels" width="600" height="600"></iframe>
+<iframe src="//webchat.freenode.net?channels=$channels" width="600" height="600"></iframe>
EOT;
return $o;