RE: The interlanguage link just does not work in myMediaWiki..

Dear Brion,

Thank you for your help!

I 've another question.

May I set the namespace URL for each language to the same
URL like "www.mywiki.org", i.e. the namespace URL for en is
www.mywiki.org, and the namespaces URL for fr, de, zh, etc.
are all www.mywiki.org. 

I 've tried this way. It seems to work well, except that the
interface langauge is always English(will not change as
different language is selected.).

I wonder if this way has an potential danger. 

If no, may I make do this: to include languageXX.php
according to the which domain name(xx.mywiki.org) is used by
the user to access website, while every
domainnames(xx.mywiki.org) are bound to the same web
directory. 

Is this way OK to accomplish a multilanguage wiki with a
single database and web directory?

Thank you for your advice!

Collin