
RewriteEngine On

RewriteRule ^admin_([a-z0-9]+)$ admin.php?mod=$1 [L,QSA]
RewriteRule ^admin_([a-z0-9]+)_([0-9]+)$ admin.php?mod=$1&fid=$2 [L,QSA]


RewriteRule ^([0-9]+)$ read.php?id=$1 [L,QSA]
RewriteRule ^([0-9]+)/$ read.php?id=$1 [L,QSA]
