i have like this http://www.svenskdesign.dns2go.com/mikael/ and my domain name is
www.mikaelweb.com when i use www.mikaelweb.com the url is http://www.svenskdesign.dns2go.com/mikael/ how do i hide this from the browser i want tha only www.mikaelweb.com shows i the browser
You can't.
You'll need to register a proper domain to do that.
is ther any scripts what kan do that
Nope.
Your DNS service simply redirects your domain to the real server. In the end you must have the real url in the browser, there's nothing you can do about that.
See if your DNS provider has "Cloaking" available. If so, enable it and your domain will be all they see.