title: Could someone explain what the following JavaScript is doing?
body: <p>This was inside the <codE>script</code> tag of a website.</p>
  
  <pre><code>var _gaq = _gaq || [];
  _gaq.push(['_setAccount', 'UA-18914337-1']);
  _gaq.push(['_trackPageview']);
  
  (function() {
  var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
  ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
  var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
  })();
  </code></pre>
  
  <p>I'm not very conversant with Javascript or jQuery. I saw this on a website and I'm wondering what it does...</p>