This is what I always do and is very helpful to maintain it organize
open includes/page_header.php
before the
?>
add this
//---------------------------------------------------------------------------------------------
//---- New template {these} --------------------------------
//---------------------------------------------------------------------------------------------
$these = $site_template->parse_template("these");
$site_template->register_vars(array(
"these" => $these
));
unset($these);
now you can add {these} to any template
and you need to create a these.html template