Javascript

[hatsumi]

Am struggling trying to find a script to open a pop up box when a web page has been updated.

What I'm trying to achieve is a pop up box that appears when content is updated, but I want the pop up to disappear and not re appear until content is updated again once, the ok, close (whatever) button is pressed. I'm thinking some kinf of timer and cookie based routine, perhaps with a refresh script so the page checks the docs/pages to see if updated since last visit or if it has changed in the last 5 minutes plus.

Any way of doing this using javascript only, i.e. no perl, php etc?

I must admit I know nothing about javascript bar what I'm currently picking up searching various javascript tute sites.

Thanks to all who reply!