Creating my own {blah}?

[www.girls-on-bikes.com]

Hello All,
I've noticed that the script uses (what I presume is XML) to include files, for example, {header}

How exactly is this done?
What I specifically want to do is have an html file called {ads} where I can pop {ads} into a designated spot and it will include that file.

So what I'm asking is, how exactly would I include my own file in the same way that, for example, {header} is done?

Thanks!

[V@no]

all u need is use this kind of format:

Code: [Select]

$site_template->register_vars("tag_name", $variable);or if u need more then one tag, then u can use array:

Code: [Select]

$site_template->register_vars(array(
   "tag_1" => $variable_1,
   "tag_2" => $variable_2
));

[ruudvroon]

I'm trying to use 2 different headers (one with a menu and one without).

But how can a create a tag like {header2}
That includes templates/{my_template}/header2.html ?