DirectoryIndex index.php
AddDefaultCharset utf-8

Options +FollowSymlinks -MultiViews -Indexes  

RewriteEngine on
RewriteRule ^([0-9a-zA-Z_]+)$ index.php?actionID=$1 [L]
 
RewriteEngine on
RewriteRule ^([0-9a-zA-Z_]+)/([0-9a-zA-Z_-]+)$ index.php?actionID=$1&ItemID=$2 [L]

RewriteEngine on
RewriteRule ^([0-9a-zA-Z_]+)/([0-9a-zA-Z_-]+)/([0-9a-zA-Z_-]+)$ index.php?actionID=$1&ItemID=$2&msgID=$3 [L]

RewriteEngine on
RewriteRule ^([0-9a-zA-Z_]+)/([0-9a-zA-Z_-]+)/([0-9a-zA-Z_-]+)/([0-9a-zA-Z_-]+)$ index.php?actionID=$1&ItemID=$2&msgID=$3&frthID=$4 [L]
 