<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/02/26/removing-the-thumb-button-on-a-fxvscrollbar-control-in-flex-gumbo/ -->
<s:Application name="Spark_VScrollBar_skinClass_thumb_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009" 
        xmlns:s="library://ns.adobe.com/flex/spark" 
        xmlns:mx="library://ns.adobe.com/flex/halo" viewSourceURL="srcview/index.html">

    <fx:Style>
        @namespace s "library://ns.adobe.com/flex/spark";
        @namespace mx "library://ns.adobe.com/flex/halo";

        s|TextArea s|VScrollBar {
            skinClass: ClassReference("skins.CustomVScrollBarSkin");
        }
    </fx:Style>

    <fx:Script>
        <![CDATA[
            import spark.utils.TextFlowUtil;
        ]]>
    </fx:Script>

    <fx:Declarations>
        <fx:String id="lorem" source="lorem.html" />
    </fx:Declarations>

    <s:VGroup horizontalCenter="0" verticalCenter="0">
        <s:TextArea id="textArea"
                    textFlow="{TextFlowUtil.importFromString(lorem)}"
                    verticalScrollPolicy="on"
                    editable="false" />
        
        <s:VScrollBar id="vsb"
                      minimum="0"
                      maximum="1000" />
    </s:VGroup>

</s:Application>