Serving up XHTML

All these ARIA example need XHTML to work correctly, but unfortunately IE does not accept the application/xhtml+xml mini type, so you need to put this in your .htaccess to get every thing to work. Thanks to Aaron for sending me this.

AddType text/html .xhtml
RewriteCond %{HTTP_ACCEPT} application/xhtml\+xml
RewriteCond %{HTTP_ACCEPT} !application/xhtml\+xml\s*;\s*q\s*=\s*0(\.0{1,3})?\s*(,|$)
RewriteCond %{REQUEST_URI} \.xhtml$
RewriteCond %{THE_REQUEST} HTTP/1\.1
RewriteRule .* - [T=application/xhtml+xml]