var disableStr = 'ga-disable-' + gaProperty;
if (document.cookie.indexOf(disableStr + '=true') > -1) {
window[disableStr] = true;
console.log('ga-disable is enabled, GA disabled.');
}
function gaOptout() {
document.cookie = disableStr + '=true; expires=Thu, 31 Dec 2999 23:59:59 UTC; path=/';
window[disableStr] = true;
}