     /**
      *  @private
      */
-    private var _userProposedSelectedIndex:Number = -1;
+    private var _userProposedSelectedIndex:Number = NO_SELECTION;
     
     /**
      *  @private

        }   
    }
    
    //--------------------------------------------------------------------------
    //
    //  Event handlers

package spark.components
{

import flash.accessibility.Accessibility;
import flash.display.DisplayObject;
import flash.events.Event;
import flash.events.FocusEvent;
