AddDefaultCharset utf-8
ErrorDocument 404 /404.php
php_value max_input_time 120

RewriteEngine On
RewriteRule ^_(.+)(\/)(.+)_([0-9]+)(\/)(.+)_([0-9]+)(\/)$ ?id_firm=$1&id_catalog=$4&id_region=$7&cam=$3&rem=$6 [L]
RewriteRule ^_(.+)(\/)(.+)_([0-9]+)(\/)(.+)_([0-9]+)(\/param_)(.+)$ ?id_firm=$1&id_catalog=$4&id_region=$7&cam=$3&rem=$6&$9 [L]
RewriteRule ^_(.+)(\/param_)(.+)$ ?id_firm=$1&$3 [L]
RewriteRule ^_(.+)(\/)$ ?id_firm=$1 [L]