cant see included files?

hey i was looking at some of the source code on PHP.net for templates and just looking about in general, then i noticed about the layout. the pages call functions in a page called layout.php, but nowhere on the page i was looking on was the include(); bit.

http://smarty.php.net/source.php?url=/source.php
http://smarty.php.net/source.php?url...ude/layout.php

how does it get the functions if there isnt an include? im pritty new to php so excuse my stupidity.

Thanks

That's odd. There has to be more to it than that?

http://ca.php.net/source.php?url=/include/layout.inc