function itemsFadeIn(Id) {
    if ($get(Id).hidden || $get(Id).style.display == "none") {
        if (Zoomarine.Season.DisableAccessories)
            alert("Prodotto non acquistabile per abbonamenti o biglietti aperti");
        else {
            $get(Id).style.display = "block";
            new AjaxControlToolkit.Animation.FadeInAnimation.play($get(Id), .5, 10, 0, 1, false);
        }
    }
}

function itemsFadeOut(Id) {
    if ($get(Id).style.display == "block") {
        new AjaxControlToolkit.Animation.FadeInAnimation.play($get(Id), .5, 10, 1, 0, false);
        $get(Id).hidden = true;
    }
}