Searching for a string in an XML node

1

I have been experimenting with loading in xml in as3 (I followed the excellent Kirupa example http://www.kirupa.com/developer/flashcs3/using_xml_as3_pg1.htm) and so far so good.

I now want to check if a certain string is present in a particular node and if so run a certain action. For example:

say my xml has a node like so:

<fruit>
<apples>
<item>Customer likes Granny Smith, Winesap and Fuji apples</item>
</apples >
</fruit>

How can I check if a string is present in a node eg

nodeVal = displayData.fruit.apples*;

if(nodeVal == “Granny Smith”){
//perform certain action here
}

Thanks for any help with this.