How to redirect .htm instead of .html to joomla? - Joomla! Forum - community, help and support

i newbie joomla (started couple of days ago). decided rebuild existing site joomla. going well, bits , pieces of information foudn around eth internet haev managed build template , insert various modules places want. far please. problem original site used .htm it's extension not .html. have enabled seo friendly urls , mod re write , tahts working fine of course thats using .html not .htm. i've had glance through teh .htaccess file , quite see need alter redirect .htm requests.

i've looked through forum di can't seem see asking teh same question, if it's there appologise, if point me in rite direction woudl appreciated.

my .htaccess follows

code: select all

##
# @version $id: htaccess.txt 10492 2008-07-02 06:38:28z ircmaxell $
# @package joomla
# @copyright copyright (c) 2005 - 2008 open source matters. rights reserved.
# @license http://www.gnu.org/copyleft/gpl.html gnu/gpl
# joomla! free software
##


#####################################################
#  read if choose use file
#
# line below section: 'options +followsymlinks' may cause problems
# server configurations.  required use of mod_rewrite, may already
# set server administrator in way dissallows changing in
# .htaccess file.  if using causes server error out, comment out (add # to
# beginning of line), reload site in browser , test sef url's.  if work,
# has been set server administrator , not need set here.
#
#####################################################

##  can commented out if causes errors, see notes above.
options +followsymlinks

#
#  mod_rewrite in use

rewriteengine on

########## begin - rewrite rules block out common exploits
## if experience problems on site block out operations listed below
## attempts block common type of exploit `attempts` joomla!
#
# block out script trying set mosconfig value through url
rewritecond %{query_string} mosconfig_[a-za-z_]{1,21}(=|\%3d) [or]
# block out script trying base64_encode crap send via url
rewritecond %{query_string} base64_encode.*\(.*\) [or]
# block out script includes <script> tag in url
rewritecond %{query_string} (\<|%3c).*script.*(\>|%3e) [nc,or]
# block out script trying set php globals variable via url
rewritecond %{query_string} globals(=|\[|\%[0-9a-z]{0,2}) [or]
# block out script trying modify _request variable via url
rewritecond %{query_string} _request(=|\[|\%[0-9a-z]{0,2})
# send blocked request homepage 403 forbidden error!
rewriterule ^(.*)$ index.php [f,l]
#
########## end - rewrite rules block out common exploits

#  uncomment following line if webserver's url
#  not directly related physical file paths.
#  update joomla! directory (just / root)

# rewritebase /


########## begin - joomla! core sef section
#
rewritecond %{request_filename} !-f
rewritecond %{request_filename} !-d
rewritecond %{request_uri} !^/index.php
rewritecond %{request_uri} (/|\.php|\.html|\.htm|\.feed|\.pdf|\.raw|/[^.]*)$  [nc]
rewriterule (.*) index.php
rewriterule .* - [e=http_authorization:%{http:authorization},l]
#
########## end - joomla! core sef section




what need alter redirect .htm requests?

thanks in advance help.

pod.

giyf, example:
http://www.isitebuild.com/301-redirect.htm
http://www.widgettwalls.com/2007/12/14/redirecting-html-to-htm-via-htaccess/