Index: /CKEditor/branches/versions/3.3.x/CHANGES.html
===================================================================
--- /CKEditor/branches/versions/3.3.x/CHANGES.html	(revision 5277)
+++ /CKEditor/branches/versions/3.3.x/CHANGES.html	(revision 5278)
@@ -40,5 +40,5 @@
 		New features:</p>
 	<ul>
-		<li></li>
+		<li><a href="http://dev.fckeditor.net/ticket/4968">#4968</a> : Config entry 'contentsLangDirection' now has a default value 'ui' which inherit language direction from editor's (UI) language.</li>
 	</ul>
 	<p>
Index: /CKEditor/branches/versions/3.3.x/_source/core/config.js
===================================================================
--- /CKEditor/branches/versions/3.3.x/_source/core/config.js	(revision 5277)
+++ /CKEditor/branches/versions/3.3.x/_source/core/config.js	(revision 5278)
@@ -77,12 +77,16 @@
 	/**
 	 * The writting direction of the language used to write the editor
-	 * contents. Allowed values are 'ltr' for Left-To-Right language (like
-	 * English), or 'rtl' for Right-To-Left languages (like Arabic).
-	 * @default 'ltr'
+	 * contents. Allowed values are:
+	 * <ul>
+	 *     <li>'ui' - which indicate content direction will be the same with the user interface language direction;</li>
+	 *     <li>'ltr' - for Left-To-Right language (like English);</li>
+	 *     <li>'rtl' - for Right-To-Left languages (like Arabic).</li>
+	 * </ul>
+	 * @default 'ui'
 	 * @type String
 	 * @example
 	 * config.contentsLangDirection = 'rtl';
 	 */
-	contentsLangDirection : 'ltr',
+	contentsLangDirection : 'ui',
 
 	/**
Index: /CKEditor/branches/versions/3.3.x/_source/core/editor.js
===================================================================
--- /CKEditor/branches/versions/3.3.x/_source/core/editor.js	(revision 5277)
+++ /CKEditor/branches/versions/3.3.x/_source/core/editor.js	(revision 5278)
@@ -146,4 +146,7 @@
 				if ( CKEDITOR.env.gecko && CKEDITOR.env.version < 10900 && editor.lang.dir == 'rtl' )
 					editor.lang.dir = 'ltr';
+
+				var config = editor.config;
+				config.contentsLangDirection == 'ui' && ( config.contentsLangDirection = editor.lang.dir );
 
 				loadPlugins( editor );