Receiving a blank page using .htaccess and multiple variables

Hey there,

I’ve got a page with the permalink ‘chat’. But now I want to manipulate my .htaccess so that I can pass two parameters in this structure:

%blogurl%/chat/user_type/user_id

e.g.

%blogurl%/chat/premium/1044

One parameter works perfectly:

RewriteRule ^chat/(.*)$ index.php?id=$1

But if I add another parameter I always receive a blank page:

RewriteRule ^chat/(.*)/(.*)$ index.php?type=$1&id=$2

I hope you can help me. This is my whole .htaccess in case that you need it:

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /hw/
RewriteRule ^register/(.*)$ index.php?mk=$1
RewriteRule ^profile/(.*)$ index.php?id=$1
RewriteRule ^chat/(.*)/(.*)$ index.php?type=$1&id=$2
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /hw/index.php [L]
</IfModule>

# END WordPress