                 for (var i:int = 0; i < dataGroup.numChildren; i++)
                 {
                     // FIXME (rfrishbe):(dsubrama) Ryan, figure out numChildren/numElement vs. getElement/getChild
-                    //and which is more performant. 
+                    //and which is more performant.
                     var renderer:IItemRenderer = dataGroup.getElementAt(i) as IItemRenderer; 
                     //Push the correct text into the renderer by settings its label
                     //property 

{
import flash.events.Event;

import spark.events.RendererExistenceEvent;
import spark.components.SkinnableDataContainer;
import spark.components.IItemRendererOwner; 
import spark.components.IItemRenderer; 
import spark.layouts.supportClasses.LayoutBase;
import spark.utils.LabelUtil; 


        
        // Step 2: dispatch the "changing" event. If preventDefault() is called
        // on this event, the selection change will be cancelled.
        var e:IndexChangeEvent = new IndexChangeEvent(IndexChangeEvent.CHANGING, false, true);
        e.oldIndex = _selectedIndex;
        e.newIndex = _proposedSelectedIndex;
        if (!dispatchEvent(e))
