.htaccess file to get rid of image extensions

Currently I have a .htaccess file that will get rid of a .png extension at the end of an image (example: http://ift.tt/1N5qcUa would be able to be accessed from http://ift.tt/1KXZ3wp)

Now, this script works perfectly fine, HOWEVER, I need to know how I can add support for .gifs, .jpgs, etc. (example: http://ift.tt/1N5qavM would be able to be accessed from http://ift.tt/1KXZ3wr)

My code so far:

RewriteEngine On

RewriteCond %{REQUEST_FILENAME} !-d 
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule (.*) /images/$1.png [QSA,L]

ErrorDocument 404 http://hi.lario.us/404
ErrorDocument 500 http://hi.lario.us/404

Thanks guys! :)

via Chebli Mohamed