Below that is an <H1> that they now would like to change the content of to match each slide image. We can do that via Ajax, but the question is how, if at all, will that affect SEO? Will it cause banning? They are not even thinking about cheating the search engines, they just know that they need <H1> text and want it to match the slides now.
My opinion is that it’s not cheating and that the search engines will only see the original <H1> and not the updated (changing) <H1> and therefore should be OK. I don’t want to be wrong about that though…