<IfModule mod_rewrite.c>
RewriteEngine On
RewriteRule
^id-([0-9]*)/?$ ?id=$1 [L,QSA]
RewriteRule ^top/?$ ?act=top [L,QSA]
RewriteRule ^exit/?$ ?act=exit [L,QSA]
RewriteRule ^zapret/?$
zapret.php [L,QSA]
RewriteRule ^id-([0-9]*)/kupit/?$
?act=kupit&id=$1 [L,QSA]
</IfModule>