/*********************************************************************************************
Inserts GA using DOM insertion of <script> tag and "script onload" method to initialize the 
pageTracker object. Prevents GA insertion from blocking I/O!As suggested in Steve Souder's talk. 
See:http://google-code-updates.blogspot.com/2009/03/steve-souders-lifes-too-short-write.html

See http://lyncd.com/2009/03/better-google-analytics-javascript/ for original source. -- Sean
**********************************************************************************************/

/* acct is GA account number, i.e. "UA-5555555-1" */
function gaSSDSLoad(acct) {
	var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www."),
    pageTracker,
    s;

	s = document.createElement('script');
	s.src = gaJsHost + 'google-analytics.com/ga.js';
	s.type = 'text/javascript';
	s.onloadDone = false;

	function init() {
		pageTracker = _gat._getTracker(acct);
		pageTracker._trackPageview();
	}

	s.onload = function() {
		s.onloadDone = true;
		init();
	};

	s.onreadystatechange = function() {
		if (('loaded' === s.readyState || 'complete' === s.readyState) && !s.onloadDone) {
			s.onloadDone = true; init();
		}
	};

	document.getElementsByTagName('head')[0].appendChild(s);

}