Index: /CKEditor/trunk/_source/core/dom/node.js
===================================================================
--- /CKEditor/trunk/_source/core/dom/node.js	(revision 6101)
+++ /CKEditor/trunk/_source/core/dom/node.js	(revision 6102)
@@ -660,4 +660,22 @@
 		},
 
+		/**
+		 * Checks is this node is read-only (should not be changed). It
+		 * additionaly returns the element, if any, which defines the read-only
+		 * state of this node. It may be the node itself or any of its parent
+		 * nodes.
+		 * @returns {CKEDITOR.dom.element|Boolean} An element containing
+		 *		read-only attributes or "false" if none is found.
+		 * @since 3.5
+		 * @example
+		 * // For the following HTML:
+		 * // <div contenteditable="false">Some <b>text</b></div>
+		 * 
+		 * // If "ele" is the above <div>
+		 * ele.getReadOnlyRoot();  // the <div> element
+		 *
+		 * // If "ele" is the above <b>
+		 * ele.getReadOnlyRoot();  // the <div> element
+		 */
 		isReadOnly : function()
 		{