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// FROM: http://snippetrepo.com/snippets/set-cookies-in-javascript-like-php
function set_cookie(name, value, time, path) {
    var date = new Date();
    date.setTime(date.getTime() + (time * 1000));
    var expires = ';expires='+ date.toGMTString();

    document.cookie = name +'='+ value + expires +';path='+ path;
}

$(document).on('click', '.set-cookie', function() {
    set_cookie('test', null, 3600, '/');
});

$(document).on('click', '.unset-cookie', function() {
    set_cookie('test', null, -3600, '/');
});