Small snippet to log an event in Google Analytics when a browser window is resized. It's often assumed designers and developers are the only people who resize the browser to see responsive web design in action. Let's test that assumption.

resize-monitor.js

if(window.addEventListener) { // correlates with media query support
	var timer = false
  ,	resize_monitor = function() {
  		if(timer) {
  			clearTimeout(timer);
  		}
  
  		timer = setTimeout(function() { _gaq.push(['_trackEvent', 'Resize', 'Resize', 'Resized']); }, 100);
        
        // or log a pageview on a non-existant page if you prefer
        // timer = setTimeout(function() { _gaq.push(['_trackPageview', '/resized.html']); }, 100);
  		}
	;

	window.addEventListener('resize', resize_monitor, false);
}