(function () {
        var msgBtn = document.querySelector('.messageBtn'),
            cookieMsg = document.querySelector('.cookieMsg'),
            cookie = document.querySelector('.cookie');

        if(localStorage.getItem('popState') == 'shown') {
            cookieMsg.classList.add('hidden');
            cookie.classList.add('hidden');
            localStorage.setItem('popState', 'shown');
        }

        msgBtn.addEventListener('click', function () {
            cookieMsg.classList.add('hidden');
            cookie.classList.add('hidden');
            localStorage.setItem('popState', 'shown');
        });
    })();