Index: /CKEditor/trunk/_source/core/dom/element.js
===================================================================
--- /CKEditor/trunk/_source/core/dom/element.js	(revision 7208)
+++ /CKEditor/trunk/_source/core/dom/element.js	(revision 7209)
@@ -1289,8 +1289,7 @@
 		{
 			var x = 0, y = 0,
-				body = this.getDocument().getBody(),
-				quirks = this.getDocument().$.compatMode == 'BackCompat';
-
-			var doc = this.getDocument();
+				doc = this.getDocument(),
+				body = doc.getBody(),
+				quirks = doc.$.compatMode == 'BackCompat';
 
 			if ( document.documentElement[ "getBoundingClientRect" ] )