Beholde url ved redirect 301

Jeg bruger dette script:
    host=lcase(Request.Servervariables("HTTP_HOST"))
            SELECT CASE host

                CASE "www.notebookonline.dk"
                  Response.Status="301 Moved Permanently"
                Response.AddHeader "Location", "/main"
                   
                CASE "notebookonline.dk"
                    Response.Status="301 Moved Permanently"
                Response.AddHeader "Location", "/main"
               
                CASE "www.kopibatterier.dk"
                    Response.Status="301 Moved Permanently"
                Response.AddHeader "Location", "http://www.kopibatterier.dk/shop/frontpage.html"
               
                CASE "kopibatterier.dk"
                    Response.Status="301 Moved Permanently"
                Response.AddHeader "Location", "http://www.kopibatterier.dk/shop/frontpage.html"


                END SELECT


Men vil gerne bevare min url, feks. www.notebookonline.dk og ikke www.notebookonline.dk/main

Kan man det ?