var Ads =
{
    clickHandler: function() {
        if (Core.hasClass(this, "hidden")) {
            var oldDate = new Date();
            document.cookie = "ads=1;expires=" + oldDate.toGMTString();
        }
        else if (Core.hasClass(this, "visible")) {
            var date = new Date();
            date.setTime(date.getTime() + (360 * 24 * 60 * 60 * 1000));
            document.cookie = "ads=1;expires=" + date.toGMTString();
        }
    },
    
    init: function() {
        var adsButton = document.getElementById("ads");
        adsButton.onclick = Ads.clickHandler;
    }
};

Core.start(Ads.init);