Index: /CKEditor/trunk/_source/plugins/selection/plugin.js
===================================================================
--- /CKEditor/trunk/_source/plugins/selection/plugin.js	(revision 5310)
+++ /CKEditor/trunk/_source/plugins/selection/plugin.js	(revision 5311)
@@ -1,3 +1,3 @@
-/*
+/*
 Copyright (c) 2003-2010, CKSource - Frederico Knabben. All rights reserved.
 For licensing, see LICENSE.html or http://ckeditor.com/license
@@ -163,12 +163,13 @@
 							});
 
-						doc.getWindow().on( 'blur', function( evt )
+						// IE before version 8 will leave cursor blinking inside the document after
+						// editor blurred unless we clean up the selection. (#4716)
+						if ( CKEDITOR.env.ie && CKEDITOR.env.version < 8 )
+						{
+							doc.getWindow().on( 'blur', function( evt )
 							{
-								// IE before version 8 will leave cursor blinking inside the document after
-								// editor blurred unless we clean up the selection. (#4716)
-								var env = CKEDITOR.env;
-								if ( env.ie && env.version < 8 )
-									editor.document.$.selection.empty();
+								editor.document.$.selection.empty();
 							});
+						}
 
 						// IE fires the "selectionchange" event when clicking