var BannerModule = {
    reload : function (root, clientId, bannerContainerType, eventTarget) {
        var url = root + '/BannerArea.aspx?type=' + bannerContainerType + '&parent=' + clientId + "&__EVENTTARGET=" + eventTarget;
        url = url.replace('//', '/');
        new Ajax.Updater(clientId, url, { evalScripts: true });
    }
};