I wouldn't mind (and do intend to, even for a school website) having so much javascript on a page that it looks different, even broken without it, but I wouldn'

I wouldn't mind (and do intend to, even for a school website) having so much javascript on a page that it looks different, even broken without it, but I wouldn't load the content with javascript like Twitter do, that's too far (and may well always be). Mostly because I want to support screenreaders, or curl/wget.