XML elements by attributes

FROM : chris.lists
DATE : Thu Feb 15 00:32:56 2007

So I have gone through the docs on NSXMLDocument, Node, and Element. 
And I have some code that has been working for a while but is 
completely based on index numbers parse through it. Here is a very 
basic sample of what I am trying to do.

<root>
   <child name="foo">
       <tag>something</tag>
   </child>
   <child name="bar">
       <tag>something else</tag>
   </child>
</root>


What I want to do is grab the child node with the 
attributeWithName@"region" stringValue:@"bar"

There just does not seem to be a method to do this that I can figure out.