SPX.pageClass = function() {
    SPX.pageClass.superclass.constructor.call(this);

    this.onPageLoading.subscribe(_pageLoading);

    function _pageLoading() {
        SPX.global.loaderElm = YAHOO.util.Dom.get("loader");
        var hsSwitcer = new SPX.widget.HeroshotsSwitcher();
         hsSwitcer.switchTo(0);
    };
};

YAHOO.extend(SPX.pageClass, SPX.pages.PageBase);