Mikro TIk router with external Login page

Hi,
We have a mikrotik router acting as hotspot gateway.

  • Radius server is used as authentication server.

Step :1 what We are trying to do is :

  • Mikrotik will only used as gateway.
  • All the request will be redireted to external server(web server).
  • Hotspot user will login from the login page hosted in external server.
  • I am Having the page like http://X.X.X.X/Nirmal/Login.htm

Step :2 Here what we trying to do is:

  • In the Mikro TIk I have two hotspot
  • I need one with default mikro tik page
  • another one i need with my webserver Page

Is it possible ? How ?