a little help for htaccess

[camaleonled]

Hi

 

I´ve a subdomain

 

mx.namedomain.com/usa/

 

with other contents because i ´m using the option "multiples shop" from 1.5.

 

All is fine, working but i want change the name for have more short and easy.

 

And i want rewrite the url for like this

 

mx.namedomain.com/usa/

 

to

 

www.namedomain.com/usa/

 

I try a lot of things, but no succes. Someone can put the correct lines.

 

(my last test is like this:

 

RewriteEngine On
        RewriteCond %{HTTP_HOST} ^http://mx.domainname.com/usa/$
        RewriteRule ^$ http://domainname.com/usa/ [L,R=301])

 

thanks