I am used to work with javascript, where you can do things like

"v=doc.getElementsByTagName('test')[0].childNodes[0].nodeValue".

I am trying to do the same in java like this but i think l2=(NodeList)
l1.item(t); is not the same as childNodes or is it ?

protected String getTag(Document doc, String tag)
{
       String v = null;
       NodeList l1,l2 = null;
       Node n = null;
       Integer t,t_,c,c_ = null;
       l1=doc.getElementsByTagName(tag);
       t_=doc.getElementsByTagName(tag).getLength();
       for(t=0;t<t_;t++)
       {
           l2=(NodeList) l1.item(t);
           c_=l2.getLength();
           for(c=0;c<c_;c++)
           {
               n=l2.item(c);
               v=v+ n.getNodeValue();
           }
       }
       return v;
}