Redirect Domain Problem

Hi,

I made a website based on the LDU engine. There is a login function but it doesn’t work anymore when people use the redirect domain ‘.tk’.

Changing domain name is no possibility (not my decision) so I have to find another way.

I thought it should work if I used a .htm page (the .tk linked with this page) that autoredirects to the index.php

<script language="javascript">
<!-- 

location.replace("http://www.mywebpage.be/folder/index.php");

-->
</script>

I was wrong, the .tk domain stays in the address bar and nobody can login.

What can I do?

Thanx,
-LATO