Ajax Nav changing charset!?

Ajax Nav changing charset!?

Hello all!
I have an html page with meta charset defined to windows-1252 to avoid accent problems.
It works fine when page is loaded with non ajax nav (rel=external).
But when i use JQM ajax nav, all  accents are f**** up... 

I tried to put the same charset in the entire website but it changes nothing.
Tested in firefox and bb5. Works fine with Chrome. 

EDIT: Seems to be a $.Ajax encoding problem...