 import mx.events.ScrollEventDetail;
 import mx.events.ScrollEventDirection;
 import mx.skins.halo.ListDropIndicator;
-import mx.collections.ItemWrapper;
-import mx.collections.ModifiedCollectionView;
 
 use namespace mx_internal;
 

        }

        var colors:Array;

        colors = getStyle("alternatingItemColors");

        if (!colors || colors.length == 0)
        {

import flash.ui.Keyboard;
import flash.utils.Dictionary;
import flash.utils.setInterval;

import mx.collections.CursorBookmark;
import mx.collections.ItemResponder;
import mx.collections.ItemWrapper;
import mx.collections.ModifiedCollectionView;
import mx.collections.errors.ItemPendingError;
import mx.controls.scrollClasses.ScrollBar;
import mx.core.ClassFactory;
