RewriteEngine On
RewriteCond %{REQUEST_FILENAME} -f [NC,OR]
RewriteCond %{REQUEST_FILENAME} -d [NC]
RewriteRule .* - [L]
RewriteRule ^index.html$ index.php
RewriteRule ^galeria,(.*?)$ pokaz_galerie.php?name=$1 [L]
RewriteRule ^([^-]*)$ index.php?p=$1 [L]

[HTML] pobierz, plaintext 
<a href="/galeria,dfg"><img src="gal/dfg/thumbs/df.jpg" alt=""><span>dfg</span></a></p></li><li><p>
<a href="/galeria,2"><img src="gal/2/thumbs/9.jpg" alt=""><span>2</span></a></p></li>
[HTML] pobierz, plaintext 

RewriteEngine On
RewriteRule ^galeria,(.*)$ pokaz_galerie.php?name=$1 [NC]