title: Parsing a web page
body: <p>how can I parse a web page which uses AJAX...
  I will be more specific here. there is a website <a href="http://www.wordcount.org/main.php" rel="nofollow">http://www.wordcount.org/main.php</a> which gives the rank of a word according to it's usage.
  for a given word, I want to retrieve it's rank...
  how can I get it? 
  this is extremely important.. thank you in a advance...</p>