It doesn't seem that parallax is what I'm looking for, after watching this video, which I have already checked out.
I would like an image to stay stay still on the page, while i.e. a solid (non-transparent) text element scrolls up over the image, hiding the image as it goes.
Then the after the text element has moved up the page, another image comes into view, with the possibility of another text element doing the same thing (if necessary)
This is my best explanation and parallax is not what I'm talking about. I'm sure you would have seem this feature on some websites.