Idea - Content disappears within seconds of page load

[wclock]

I'd like to make it where the content on a page is only visible for a set amount of time while the user is on the page.

Page loads - text is displayed - text disappears after 30 seconds.

*I know if the user reloads the page it will reset, and that is ok.

!!What if we could grab the ip address of the web visitor, make text disappear after set seconds/minutes, when that user reloads the page they get "a set message" and their ip won't reload the content for X days or X amount of time?

[theukedge]

This is a slight variation of other recommendations that I've seen in the past, such as #14 which would be dependent on checking when the page loaded and using JS to intervene while the content is on screen at a specified time (either a preset expiration time, or a set number of seconds after page load as you suggest). I'll keep this in mind.

Thanks!