Index: Skin.php
===================================================================
--- Skin.php	(wersja 23693)
+++ Skin.php	(kopia robocza)
@@ -413,7 +413,7 @@
 
 		global $wgStylePath;
 		$s = "/* generated javascript */\n";
-		$s .= "var skin = '{$this->skinname}';\nvar stylepath = '{$wgStylePath}';";
+		$s .= "if (!window.skin) { var skin = '{$this->skinname}';\nvar stylepath = '{$wgStylePath}'; }";
 		$s .= "\n\n/* MediaWiki:Common.js */\n";
 		$commonJs = wfMsgForContent('common.js');
 		if ( !wfEmptyMsg ( 'common.js', $commonJs ) ) {