RewriteEngine on

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php

#RewriteRule ^([a-zA-Z_-]+)/([a-z]+)$ index.php?page=$1&lang=$2
#RewriteRule ^([a-zA-Z_-]+)$ index.php?page=$1
#RewriteRule ^([a-zA-Z_-]+)/$ index.php?page=$1
#RewriteRule ^([a-zA-Z_-]+)/([a-z]+)/$ index.php?page=$1&lang=$2
#RewriteRule ^([a-zA-Z_-]+)/([a-z]+)/item-([0-9]+).html$ index.php?page=$1&lang=$2&item=$3
#RewriteRule ^([a-zA-Z_-]+)/([a-z]+)/item-([0-9]+).html/$ index.php?page=$1&lang=$2&item=$3

ErrorDocument 404 "<H1>Page not found</H1>"
