On codeproject.com this popup control
are very popular, is's "old" but a lot of people use it.
r.a.d.tooltip can do the same, but much better. All it needs are the onload event property.
We see this functionality every day in windows, new updates are ready, remember this and that - and so on.
With a little effort r.a.d.tooltip could "conger" this functionality to.
Why not implement it, I think - we all could use it, cant we?