Index: /CKEditor/trunk/CHANGES.html
===================================================================
--- /CKEditor/trunk/CHANGES.html	(revision 5996)
+++ /CKEditor/trunk/CHANGES.html	(revision 5997)
@@ -88,4 +88,5 @@
 		<li><a href="http://dev.ckeditor.com/ticket/5626">#5626</a> : CKeditor 3.2.1 : html content attached makes ckeditor crash the browser FF/IE.</li>
 		<li><a href="http://dev.ckeditor.com/ticket/6508">#6508</a> : BiDi: Margin mirroring logic doesn't honor CSS direction.</li>
+		<li><a href="http://dev.ckeditor.com/ticket/6043">#6043</a> : BIDI: When we apply RTL direction to a right aligned Paragraph, Paragraph is not moved to left & Alignment of Paragraph is not changed.</li>
 		<li>Updated the following language files:<ul>
 			<li><a href="http://dev.ckeditor.com/ticket/6427">#6427</a> : Ukrainian;</li>
Index: /CKEditor/trunk/_source/plugins/justify/plugin.js
===================================================================
--- /CKEditor/trunk/_source/plugins/justify/plugin.js	(revision 5996)
+++ /CKEditor/trunk/_source/plugins/justify/plugin.js	(revision 5997)
@@ -80,4 +80,39 @@
 
 			this.cssClassRegex = new RegExp( '(?:^|\\s+)(?:' + classes.join( '|' ) + ')(?=$|\\s)' );
+		}
+	}
+
+	function onDirChanged( e )
+	{
+		var editor = e.editor;
+
+		var range = new CKEDITOR.dom.range( editor.document );
+		range.setStartBefore( e.data );
+		range.setEndAfter( e.data );
+
+		var walker = new CKEDITOR.dom.walker( range ),
+			node;
+
+		while ( node = walker.next() )
+		{
+			if ( node.type == CKEDITOR.NODE_ELEMENT )
+			{
+				// A child with the defined dir is to be ignored.
+				if ( !node.equals( e.data ) && node.getDirection() )
+				{
+					range.setStartAfter( node );
+					walker = new CKEDITOR.dom.walker( range );
+					continue;
+				}
+
+				// Switch the alignment.
+				var style = 'text-align';
+				var align = node.getStyle( style );
+
+				if ( align == 'left' )
+					node.setStyle( style, 'right' );
+				else if ( align == 'right' )
+					node.setStyle( style, 'left' );
+			}
 		}
 	}
@@ -179,4 +214,5 @@
 			editor.on( 'selectionChange', CKEDITOR.tools.bind( onSelectionChange, center ) );
 			editor.on( 'selectionChange', CKEDITOR.tools.bind( onSelectionChange, justify ) );
+			editor.on( 'dirChanged', onDirChanged );
 		},