Newbie's question -- extracting information from XML file

[Song Li]

Hi,
I have an XML file with the format looks like:
===================================
 <relation entry1="43" entry2="48" type="ECrel">
        <subtype name="compound" value="88"/>
    </relation>
===================================
I want to extract the "value" under the node "subtype" by using DOM,  
I've tried two methods but neither return a correct result:

method 1:  get a DOMnode(let's call it nd)  points to "relation", then 
call "nd2 = nd->getFirstChild();". The problem is  that this nd2 has 
the type "TEXT NODE", so I can't use "getAttributes", and 
getTextContent() doesn't work as well.

method2:
subList = doc->getElementsByTagName(XMLString::transcode("subtype"));
This time subList->item(0) has the type "ELEMENT NODE", but 
surprisingly "subList->item(0)->getAttributes()->getLength()" returns 1 
!!! and this only attribute is "name" ... I still cannot extract 
"value".

So what's wrong with these methods and what's the good way to get 
"value" from this file???

Thanks a lot! Please reply, if this message is not clear enough I can 
post my code in more detail......

Song
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