title: Working with a more complicated xml document
body: <p>Hi guys im using gdataxml library, and was working with a sample file : <a href="http://daniarnaout.com/School.xml" rel="nofollow">http://daniarnaout.com/School.xml</a></p>
  
  <pre><code>NSData *xmlData = [[NSMutableData alloc] initWithContentsOfURL:[NSURL URLWithString:@"http://daniarnaout.com/School.xml"]];
  GDataXMLDocument *doc =[[GDataXMLDocument alloc] initWithData:xmlData options:0 error:nil];
  
  NSArray *names =[doc nodesForXPath:@"//School/Student/Name" error:nil];
  for(GDataXMLElement *name in names) { NSLog(@"name: %@ \n",name.stringValue); }
  </code></pre>
  
  <p>This works well, except that now i want to go onto working with the real document <a href="ftp://ftp2.bom.gov.au/anon/gen/fwo/IDV10753.xml" rel="nofollow">ftp://ftp2.bom.gov.au/anon/gen/fwo/IDV10753.xml</a></p>
  
  <p>i can print the xml to the log with <code>NSLog(@"%@",doc.rootElement);</code></p>
  
  <p>but if i change the xpath to <code>//product/forecast/,</code> i'm not getting anything.</p>
  
  <p>basically i want to grab the details for <code>&lt;area aac="VIC_PT025"</code></p>
  
  <p>what am i doing wrong?</p>