[thelist] Pop-up when user leaves site.

[Damien Cola]

One solution is that the very first page of your site is a frameset of the
type
row "100%,*"
one the first 100% you call your first page of your site, and the rest of
the pages will appears in this frame ( "target = "_self" for each link )
one the second * you call a special page, empty, with a mere:
> body onunload="mypopupwindow()" <
< /body <

and of course the javascript function in the > head <
>