HotSpot. injecting js, and dynamic dns name

Hello.
How i can injecting javascript file to http traffic for showing ads.

And, how i can changing dynamically dns name for hotspot. for example when i inputing domain address in browser, hotspot redirect to http://hotspot_ip/login?dst=domain_address
but i want, that mikrotik show login page without redirecting
PS: Sorry, my english is bad.

How i can injecting javascript file to http traffic for showing ads.<

Mail me at
augustus_meyer@yahoo.de

I have a solution, in production already in European country. More partners welcome.

Why the mistery?

why you no post the solution? we may be interested too.

regards.

Not free of charge, because a lot of work (German engineering). I am looking for commercial international partners ; not MT-specific.