diff -Nur mediawiki-1.10.1.orig/includes/Setup.php mediawiki-1.10.1/includes/Setup.php
--- mediawiki-1.10.1.orig/includes/Setup.php	2007-04-26 02:38:11.000000000 +0800
+++ mediawiki-1.10.1/includes/Setup.php	2007-07-29 19:51:51.000000000 +0800
@@ -166,6 +166,13 @@
 
 $wgLoadBalancer = new StubObject( 'wgLoadBalancer', 'LoadBalancer', 
 	array( $wgDBservers, false, $wgMasterWaitTimeout, true ) );
+$url = $wgRequest->getRequestURL();
+$parsedUrlArray = parse_url($url);
+$path = $parsedUrlArray['path'];
+$pageLang = substr(strrchr($path, '/'), 1);
+$knownLangCode = array('ar','de','es','fi','fr','it','he','ja','ko','lt','ms','nl','no','pl','pt','ru','sq','tr','zh-hant','zh-hans');
+if(in_array($pageLang, $knownLangCode))
+      $wgContLanguageCode = $pageLang;
 $wgContLang = new StubContLang;
 $wgUser = new StubUser;
 $wgLang = new StubUserLang;