 
 import mx.collections.IList;
 import mx.core.IFactory;
-import mx.core.IVisualElement; 
-import mx.events.FlexEvent;
+import mx.core.IVisualElement;
 import mx.events.PropertyChangeEvent;
-import mx.managers.IFocusManagerContainer;
 import mx.utils.BitFlagUtil;
 
-import spark.components.supportClasses.ItemRenderer;
 import spark.components.supportClasses.SkinnableContainerBase;
 import spark.core.IViewport;
 import spark.events.RendererExistenceEvent;

     */
    public function get horizontalScrollPosition():Number 
    {
        return (dataGroup) 
            ? dataGroup.horizontalScrollPosition 
            : dataGroupProperties.horizontalScrollPosition;
    }

    /**

     */
    public function get verticalScrollPosition():Number 
    {
        if (dataGroup)
            return dataGroup.verticalScrollPosition;
        
        var vsp:Number = dataGroupProperties.verticalScrollPosition;
        return isNaN(vsp) ? 0 : vsp;        
    }

    /**
