Exit popups that don't appear on BACK or REFRESH

Does anyone know how they work?

[ianama]

Does anyone know how to design an exit popup that wont appear on BACK or REFRESH?

Seems fortune.com uses one; but I can't figure out how it works.

Any help would be greatly appreciated.

With every good wish,
Ian A.

[Imaster]

Ian,

Check this out [webmasterworld.com...]

[Imaster]

I think a cookie would take care of it :)

[ianama]

Thanks Imaster, but would you know how this cookie would work?

Ian

[Imaster]

Ian, there's one more discussion on the same line : [webmasterworld.com...]

I will look if I can find some more information for you. Hang on...