Replace default ga.js location with local file.

localga.js

$(document).ready(function(e) {
	(function() {
		var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
		//ga.src = ('https:' == document.location.protocol ? '<a href="https://ssl">https://ssl</a>' : '<a href="http://www">http://www</a>') + '.<a href="http://google-analytics.com/ga.js">google-analytics.com/ga.js</a>';
		//replace the google provided src attribute with the local file starting from the www directory
		ga.src = 'ga.js';
		var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
	})();
});