how to get the right node from web with html parser

[vitaly87]

Hello all!
I want to get all nodes the have :
<div class="user-thread">
of others,the structure is

<div class="user-thread">
<ul class="uinfo2"><li class="uname2"><b>Farzam</b></li>
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<span class="uinreply" title="Dear All, 
can anyone tell me the best jailbreak for my iphone 4.2.1? 
many thanks">> In reply to amir @ 2010-12-12 13:18 from 3ZIs</span>salam dada khubi bebin jailbreak kolan ta jay ke man midunam ba cidya injam mishe vali agar kam jilbreak nakoni ke khube??? man hamin jurish kheili raziam:D</p>
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<li class="upost">2010-12-13 13:52</li>

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<span title="Encoded location">Sc{a</span></li>

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R</span>
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I use the org.htmlparser.Parser;
But I just dont know how to get specific nodes with that class name,
my code is:

 public void extractNode(String url) throws ParserException{

 Parser parser = new Parser();
        //<meta name="description" content="Some texte about the site." />
        HasAttributeFilter filter = new HasAttributeFilter("class", "user-thread");
        try {
            parser.setResource(url);
            NodeList list = parser.parse(filter);
            Node node = list.elementAt(0);
       System.out.println(node);
   
         

              
                // Prints: "YouTube is a place to discover, watch, upload and share videos."
            

        } catch (ParserException e) {
            e.printStackTrace();
        }
    }

can you help me? thanks a lot.