var Access = {
    interval: null,

    init: function() {
        var d = new Date()
        Access.interval = (secondsToShow - (endTime - parseInt(d.getTime()/1000)));
        Access.showTime();
    },

    showTime: function() {
        setTimeout(Access.update, 500);
    },

    update: function() {
        var d = new Date()
        var t = (endTime + Access.interval - parseInt(d.getTime()/1000));
        if (t < 1) {
            document.getElementById('counter').innerHTML = '';
            window.location.reload();
        } else {
            var minut = parseInt(t/60);
            var sekund = parseInt(t%60);
            document.getElementById('counter').innerHTML = (minut + ':' + (sekund < 10 ? '0' : '') + sekund);
            setTimeout(Access.update, 500);
        }
    }
}