flex4: fx|XML - how to do complex search

i would like to search inside an fx|XML Object for a node with label='notifications' and inside of it a node with label='notifications2' and i want to get an XML contains what's in it.

this is my Flex 4 Code:

<?xml version="1.0" encoding="utf-8"?>
<s:Appli开发者_StackOverflow社区cation xmlns:fx="http://ns.adobe.com/mxml/2009" 
           xmlns:s="library://ns.adobe.com/flex/spark" 
           xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600" creationComplete="_ccInit()">

<!-- Launch your application by right clicking within this class and select Debug As > FDT SWF Application -->

<fx:Declarations>
    <fx:XML id="moshe">
        <node state="root_item" label="notifications">
        <node state="root_item" label="notifications2">
                <node state="item" label="item" a="test1" b="test2" />
        </node>
            <node state="root_item" label="Winnings" />
            <node state="root_item" label="Winnings2" />
            <node state="root_item" label="Winnings3" />
            <node state="root_item" label="Winnings4" />
            <node state="root_item" label="Winnings5" />
        </node>
    </fx:XML>
</fx:Declarations>

<fx:Script>
    <![CDATA[
        import mx.controls.Alert;
        private function _ccInit():void {
            var newXml:XML = moshe.(@label == "notifications").(@label == "notifications2") as XML;
            Alert.show(newXml.toString());          
        }
    ]]>
</fx:Script>
</s:Application>

newXml is null. how can i resolve the issue ?

thanks

Your search will never work. You dont define a rootTag for the moshe XML, and you cannot have root tag, 'nodes' and 'elements' with the same name i.e. node. You will have to have properly formatted XML.

A search for Flex XML Search on StackOverflow will give plenty of examples