如果用户已登录，请更改站点地图上的链接？

I have a sitemap that has a link for when a user is not logged in, but when they do login, the link should change, for example, nonmember.aspx should change to member.aspx. This sitemap is tied to an asp:menu. Does anyone know how to do this?I have a sitemap that has a link for when a use