title: Javascript gaJsHost
body: <p>i just want to know the use of this script.. </p>
  
  <pre><code> var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");
  
   document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));
  </code></pre>
  
  <p>i found this on some websites.. :)</p>
  
  <p>and also this one..</p>
  
  <pre><code> var pageTracker = _gat._getTracker("UA-1965499-1");
  
   pageTracker._initData();
  
   pageTracker._trackPageview();
  </code></pre>