DNT_Check.js

function WebAnalytics() {

 var _dntStatus = navigator.doNotTrack || navigator.msDoNotTrack;

 var fxMatch = navigator.userAgent.match(/Firefox\/(\d+)/);

 var ie10Match = navigator.userAgent.match(/MSIE 10/i);

 var w8Match = navigator.appVersion.match(/Windows NT 6.2/);

 if (fxMatch && Number(fxMatch[1]) < 32) {

    _dntStatus = 'Unspecified';

 } else if (ie10Match && w8Match) {

     _dntStatus = 'Unspecified';

 } else {

    _dntStatus = { '0': 'Disabled', '1': 'Enabled' }[_dntStatus] || 'Unspecified';

 }

 if (_dntStatus !== 'Enabled'){

     // Add GA JavaScript here

 }

}