title: Parse xml value from xml file in server of this sample code
body: <p>I've created an app using xml parser from a tutorial.But this tutorial found to be easy.In this an xml file is parsed from local xml..But if i need to parse an value from xml file say www.xxxxx.com/xxx.xml..how can i modify the code...Guidance please..</p>
  
  <pre><code>- (void) applicationDidFinishLaunching:(UIApplication *)application {
  
  // find "sample.xml" in our bundle resources
  NSString *sampleXML = [[NSBundle mainBundle] pathForResource:@"sample" ofType:@"xml"];
  NSData *data = [NSData dataWithContentsOfFile:sampleXML];
  
  // create a new SMXMLDocument with the contents of sample.xml
  NSError *error;
  SMXMLDocument *document = [SMXMLDocument documentWithData:data error:&amp;error];
  
  // check for errors
  if (error) {
      NSLog(@"Error while parsing the document: %@", error);
      return;
  }
  
  // demonstrate -description of document/element classes
  NSLog(@"Document:\n %@", document);
  
  // Pull out the &lt;books&gt; node
  SMXMLElement *books = [document.root childNamed:@"books"];
  
  // Look through &lt;books&gt; children of type &lt;book&gt;
  for (SMXMLElement *book in [books childrenNamed:@"book"]) {
  
      // demonstrate common cases of extracting XML data
      NSString *isbn = [book attributeNamed:@"isbn"]; // XML attribute
      NSString *title = [book valueWithPath:@"title"]; // child node value
      float price = [[book valueWithPath:@"price"] floatValue]; // child node value (converted)
  
      // show off some KVC magic
      NSArray *authors = [[book childNamed:@"authors"].children valueForKey:@"value"];
  
      NSLog(@"Found a book!\n ISBN: %@ \n Title: %@ \n Price: %f \n Authors: %@", isbn, title, price, authors);
  }
   }
  </code></pre>
  
  <p>I've tried many tutorials for so many hours and finally i got well from using these code in my app.But i need to import xml file from server...</p>