force or no-www code for .htaccess

[staseo]

Something to speed up the GS pages:
(browser caching)

Code:

ExpiresActive on
    # set default
    ExpiresDefault "access plus 24 hours"

    ExpiresByType image/jpg "access plus 7 days"
    ExpiresByType image/gif "access plus 7 days"
    ExpiresByType image/jpeg "access plus 7 days"
    ExpiresByType image/png "access plus 7 days"
    ExpiresByType text/css "access plus 7 days"
    ExpiresByType text/html "access plus 7 days"
    ExpiresByType text/htm "access plus 7 days"
    ExpiresByType text/xml "access plus 7 days"
    ExpiresByType image/x-icon "access plus 1 month"