[TYPO3] Sub-Templates?

[Amir M.]

Hi,

I am not sure if this question has been addressed before, since I cannot 
search the archives, but I am interested in creating sub-templates for 
sections of my site.

For example, here is my main page:  www.stratcommandcenter.com/redesign4
As you can see the banner says "Strategic Command Center"

However, for the sub-sites of the main site I'd like to create a 
different banner, so there is a recognizable difference between the 
sub-sites.  Here are the links to the subsites:

http://www.stratcommandcenter.com/redesign4/civilization-iv/
http://www.stratcommandcenter.com/redesign4/total-war-series/

What would be the best way to use a different banner for each subsite?

Note, all the pages and all the sites use the same template, and I like 
it that way, since I do want a unified design, however all I want is to 
make a different banner for each section/sub-site.