      *  @private
      *  Flag that is set when the currentState changes from enabled to disabled
      */
-    private var enabledChanged:Boolean; 
+    private var enabledChanged:Boolean = false; 
     
     /**
      *  labelDisplay skin part.

        {
            // force enabled update when icon changes
            enabledChanged = true;
            setIcon(getStyle("icon"));
        }
        

        {
            commitDisabled();
            enabledChanged = false;
        }
    }
    
