Handle redirection of TLDs leading to same webfolder, should go to different language pages

Question

Hi

I am sorry if the heading is a bit confusing.

What I want to do is this:

I have an IIS 7.0 webserver. One of the sites that I host has 3 domains pointing to it. They work fine.

The thing is that I want 1 domain for each language.

Example: hxxp://www.example.se should lead to hxxp://www.example.se/index.php/sv/hem hxxp://www.example.dk should lead to hxxp://www.example.dk/index.php/da/forside hxxp://uk.example.dk should lead to hxxp://uk.example.dk/index.php/en/home

If I surf to example.se, or dk, or the uk version I will always end up on the SE version because it's the "core" language of the site.

The problem is that I don't know how to redirect this properly... I suppose that I can't accomplish this on the DNS. Perhaps there is some trick on IIS 7.0?

Thanks in advance.