ga-germany.js

var gaProperty = 'UA-XXXXXXXX-Y';
var disableStr = 'ga-disable-' + gaProperty;
// checking for opt-out cookie on document and applying to window if set
if (document.cookie.indexOf(disableStr + '=true') > -1) {
	window[disableStr] = true;
}
// user is opting out, setting cookie on document, window and alerting success
function gaOptout() {
	document.cookie = disableStr + '=true; expires=Thu, 31 Dec 2099 23:59:59 UTC; path=/';
	window[disableStr] = true;
	alert('Google Analytics Tracking is now deactivated!');
}
// Google Analytics as usual from here on
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','https://www.google-analytics.com/analytics.js','ga');

ga('create', gaProperty, 'auto');
ga('send', 'pageview', {
  'anonymizeIp': true
});