Charset (iso-8859-1) problem

Hi, I have a webpage with a href that loads another page w/ a form, and
the forms textfields are set with values like this:

href="set_uts_upd_params?oid=55&type=kjøl"

Now, when the new page loads with its form values set, I have problems
with the unicode characters (the iso-8859-1 charset family); they show
up with weird substitution character instead of the correct character.

For example, the type parameter (=kjøl) in the example above shows up as
kjøl , where ø is substituted for ø.

What to do?

Any help greatly appreciated!

Baalbek