Track Client-Side Errors with Google Analytics

gistfile1.html

<script type="text/javascript">
var _gaq = _gaq || [];
_gaq.push(['_setAccount', 'UA-12345678-1']);
_gaq.push(['_setDomainName', 'yoursite.com']);
_gaq.push(['_addIgnoredRef', 'yoursite.com']);
_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);
})();

// ADD THIS AT THE BOTTOM OF YOUR GOOGLE ANALYTICS TRACKING CODE //
window.onerror = function(message, file, line) { 
   var sFormattedMessage = '[' + file + ' (' + line + ')] ' + message; 
   _gaq.push(['_trackEvent', 'Exceptions', 'Application', sFormattedMessage, null, true]);
}
</script>