anchor.diff:                   SupportClass
                    PositionClass
                    AnimateConfigClass
  -                 AjaxConfigClass
  +                 AjaxSettings
                    EventClass
                    JQueryClass
                    FX
  
positive.code:                     "xhr" , T<unit> ^-> XmlHttpRequest
                  ]
          }
          |=> AjaxConfig
  
      let StringMap = Type.New()
  
  
negative.code:             Event?event *
  
              XmlHttpRequest?request *
              AjaxSettings?config ^->
              T<unit>
          ) ^-> JQ
  
  