Hello,
I have a multilingual site.
For SEO reasons it seems to be important to determine the language of the text on every page.
However I did not find a language setting on the page properties window and all pages are referring to English :

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

So how do I set the language of the page?

Kind regards,
Joris