url writing in global.asax

Question

if am i doing url writing its adding my static word in all page link if mdetail it staic word

it showing static word in all page like medtail/index.aspx. in all css automatically adding mdetal word

 

mdetail.css... 

static void RegisterRoutes(RouteCollection routes)

{

routes.Ignore("{resource}.axd/{*pathInfo}");

routes.MapPageRoute("mdetail", "mdetail/{mid}", "~/mdetail.aspx"); 

routes.RouteExistingFiles = false;

routes.RouteExistingFiles = false;

routes.Add(new Route("*\\.jpg", new StopRoutingHandler()));

}