title: functions in functions nodejs
body: <p>I want to get the klout score using a screen name (twitter).</p>
  
  <p>I did this. I know it doesn't work like that, but I don't know how it should work.</p>
  
  <pre><code>function get_klout(screenName){
    klout.getKloutIdentity(screenName, function(error, klout_user) {
      klout.getUserScore(klout_user.id, function(error, klout_response) {
         return Math.round(klout_response.score);
      });
    });
  }
  </code></pre>
  
  <p>I want my function to return this number <code>Math.round(klout_response.score);</code></p>