ErrorDocument 401 /myerror.html
ErrorDocument 403 /myerror.html

RewriteEngine On
RewriteBase /

#  Recommends
RewriteCond %{REQUEST_URI} ^recommends
RewriteRule ^recommends/(.+) recommends.php?id=$1 [L,PT]

RewriteCond %{REQUEST_FILENAME} !-f 
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI} !(awstats|sitemap.xml|recommends)
RewriteRule . /index.php [L]