rewriting with addressbar and link same

[stoupajc]

Hello, I need:
- link: server.cz/uvod
- in adressbar: server.cz/uvod

If I write this code:

RewriteEngine On
RewriteCond %{HTTP_HOST} ^server\.cz
RewriteRule ^uvod/(.*)$ http://server.cz/index.php?menu=uvod&main=$1 [QSA]

and type in adressbar: server.cz/uvod/?pokus
I see server.cz/index.php?menu=uvod&main=pokus

But still I need see server.cz/uvod/?pokus

Thankks for help.
Honza