Index: CKEditor/trunk/_source/core/dom/element.js
===================================================================
--- CKEditor/trunk/_source/core/dom/element.js	(revision 6419)
+++ CKEditor/trunk/_source/core/dom/element.js	(revision 6420)
@@ -1556,6 +1556,10 @@
 		 * Gets, sets and removes custom data to be stored as HTML5 data-* attributes.
 		 * @name CKEDITOR.dom.element.data
-		 * @param {String} name The name of the attribute, execluding the 'data-' part.
+		 * @param {String} name The name of the attribute, excluding the 'data-' part.
 		 * @param {String} [value] The value to set. If set to false, the attribute will be removed.
+		 * @example
+		 * element.data( 'extra-info', 'test' );   // appended the attribute data-extra-info="test" to the element
+		 * alert( element.data( 'extra-info' ) );  // "test"
+		 * element.data( 'extra-info', false );    // remove the data-extra-info attribute from the element
 		 */
 		data : function ( name, value )