i have a big problem but im not the biggest programmer and after trying 2 hours, maybe sombody can help me here

i think its only a small thing - if you know how

thats what i wanna do:
in my template dir i have a include folder for every language:
include_deutsch
include_english
include_spanish
I want to put there files to include like "start.php" which have a table with the main contens for the german startpage.
i want to call this table in the home.html template with something like {lang_starttable} , so that the page is including the start.php from the template/mytemplate/include_deutsch/ folder.
think its easy if you know how - but im more a designer than a programmer

if somebody can tell me what i have to do.. i could help with design

thank you
Marco