title: javascript variables, What does var x = a = {} do?
body: <p>I see in jQuery something like this:</p>
  
  <pre><code>jQuery.fn = jQuery.prototype = {}
  </code></pre>
  
  <p>Why is this being done? Isn't this the same thing just saying jQuery.prototype = {}? I'm not sure I understand what Resig is accomplishing here.</p>