title: Convert date to another timezone in JavaScript
body: <p>I am looking for a function to convert date in one timezone to another. </p>
  
  <p>It need two parameters, </p>
  
  <ul>
  <li>date (in format "2012/04/10 10:10:30 +0000") </li>
  <li>timezone string ("Asia/Jakarta")</li>
  </ul>
  
  <p>The timezone string is described in <a href="http://en.wikipedia.org/wiki/Zone.tab" rel="noreferrer">http://en.wikipedia.org/wiki/Zone.tab</a></p>
  
  <p>Is there an easy way to do this?</p>