code: function (cfg) {
              var rv = true;
  
              if (JS.isObject(cfg)) {
                  if (cfg.speed) {
                      rv = rv && JS.isNumber(cfg.speed);
                  }
                  if (cfg.effect) {
                      rv = rv && JS.isFunction(cfg.effect);
                  } else if (!JS.isUndefined(YAHOO.util.Easing)) {
                      cfg.effect = YAHOO.util.Easing.easeOut;
                  }
              } else {
                  rv = false;
              }
  
              return rv;
          }
docs: Validate animation parameters.
  
  @method _validateAnimation
  @param cfg {Object} The animation configuration
  @return {Boolean} The status of the validation
  @protected