         instance.radioButtonGroup = this;
         instance.invalidateSkinState();
         
-		dispatchEvent(new Event("numRadioButtonsChanged"));
+        dispatchEvent(new Event("numRadioButtonsChanged"));
     }
 
     /**

                    // because the state changed, the group will be needed
                    // if the radio button is readded later because of another
                    // state transition.
                	//rb.group = null;

                    // If the rb is selected, leave the button itself selected
                    // but clear the selection for the group.

 *
 *  @mxml
 *
 *  <p>The <code>&lt;s:RadioButtonGroup&gt;</code> tag inherits all of the
 *  tag attributes of its superclass, and adds the following tag attributes:</p>
 *
 *  <pre>
