is it possible to link directly to a langage, like index.php?language=en_US.

You can set a cookie named 'dynamic_locale'.

zp is able to that by it's one i saw, the only problem, why i didn't notice that, cause i didn't have a de_AT folder. My browsers language is de_AT.

You are welcome to provide an Austrian translation..:-)

the language is nearly the same, only mentality is different . i didn't find any word or sentense in your translation which i want to change, so i think you can just copy the de_DE version or make a redirect if the language is de_AT.

Best is to copy the de_DE folder to whatever the name for Austrian is. Normally browsers would have de_DE as an alternate, though.

thx - i know that possibility - de_AT is it