getExpander: function (el, expOnly) {
            if (typeof el == 'undefined') return hs.expanders[hs.focusKey] || null;
            if (typeof el == 'number') return hs.expanders[el] || null;
            if (typeof el == 'string') el = hs.$(el);
            return hs.expanders[hs.getWrapperKey(el, expOnly)] || null;