             invalidateDisplayList();
         }
     }
-	
+    
     /**
      *  @private 
      */

    {
        contentGroup = new Group();
        contentGroup.id = "contentGroup";
    	
        actionBar = new ActionBar();
        actionBar.id = "actionBar";
        

import spark.transitions.ViewTransitionBase;

/**
 *  The ActionScript-based skin for view navigators in mobile
 *  applications.  This skin lays out the action bar and content
 *  group in a vertical fashion, where the action bar is on top.
 *  This skin also supports navigator overlay modes.
