What are closures in javascript and jquery
<blockquote>
  <p><strong>Possible Duplicate:</strong><br>
  <a href="http://stackoverflow.com/questions/1801957/what-exactly-does-closure-refer-to-in-javascript">What exactly does &ldquo;closure&rdquo; refer to in JavaScript?</a>  </p>
</blockquote>



<p>Can someone help me understand js closures ? i have no idea of closures , can someone explain or give me some link to understand them.</p>

<p>How scopes of variables are determined in it</p>
