var OverlayAd = {
	load : function (id, days, hideDelay, fadeDuration) {
		var cookieValue = Cookie.read("adCookie_"+id);
		fadeDuration = (fadeDuration) ? fadeDuration : 1;
		hideDelay = (hideDelay) ? hideDelay : 15000 + fadeDuration;
	
		if (cookieValue == "false") {
			showProductZoom = false;
			new Effect.Fade(id, {duration: fadeDuration});
		}else{
			showProductZoom = true;
			Element.show(id);
			Cookie.create("adCookie_" + id, "false", days);
			setTimeout("OverlayAd.hide('" + id + "', " + fadeDuration + ")", hideDelay);
		}
	},
	
	hide : function (id, fadeDuration) {
		fadeDuration = (fadeDuration) ? fadeDuration : 1;
		new Effect.Fade(id, {duration: fadeDuration});
	}
}