How to force the stite to run from www...?

I want to that my petition site should run like http://www.petitionspot.com rather then http://petitionspot.com

irrespective of what the user have type it should get redirected to the www domain.

how can i do that with .htaccess file

 

RewriteEngine On
Options FollowSymLinks
RewriteBase /

# Rewrites non-www to www.
RewriteCond %{HTTP_HOST} !^www\..*
RewriteCond %{HTTP_HOST}   !^$
RewriteCond %{HTTP_HOST} ^([^.]*)\.(com|co\.uk)
RewriteRule ^.*$     http://www.%1.%2%{REQUEST_URI} [R=permanent,L]

Code (markup):

 

I would like the same thing, except the other way around.
I want www to go to http://

What would my .htaccess look like?

Thanks.

~YC

 

To the 'www':

Options +FollowSymlinks 
RewriteEngine On 
RewriteCond %{HTTP_HOST} !^(www\.|$) [NC] 
RewriteRule ^ http://www.%{HTTP_HOST}%{REQUEST_URI} [L,R=301]

Code (markup):

To go from the 'www' to non 'www' use this code:

Options +FollowSymlinks 
RewriteEngine On 
RewriteCond %{HTTP_HOST}//s%{HTTPS} ^www\.(.*)//((s)on|s.*)$ [NC] 
RewriteRule ^ http%3://%1%{REQUEST_URI} [L,R=301]

Code (markup):

 

Thanks stymiee!