It take long time since last my post.
And thank you very much for your kind suggestions on that time.
Today I ask the question below.

I installed EMLH and it moves very well.
But there is no change on defined constant words of xoops if I click to english.
For examle
in japanese of PiCal
define('_PICAL_MB_PREV_DATE','昨日') ;
in english
it should be
define('_PICAL_MB_PREV_DATE','yesterday') ;

But no change happened.
It woudl be as EMLH, or bugs of program??

And please advice how change lamguage files, if EMLH dosen't chnage it.

You are misunderstanding with EMLH.

with EMLH, you have to modify
define('_PICAL_MB_PREV_DATE','[ja]昨日[/ja][en]yesterday[/en]') ;

Thus, EMLH is friendly to block & module cache.


If you want to change $xoopsConfig['language'] automatically, try nobunobu's one.

http://www.kowa.org/

Thank you very for quick advice. I got what it is!!