code: function wrap(fn) {
                      return function() {
                          body.appendChild(el);
                          el.addBehavior('#default#userData');
                          el.load(sn);
                          var ret = fn.apply(store._area, arguments);
                          el.save(sn);
                          body.removeChild(el);
                          return ret;
                      };
                  }
docs: IE userData