The counter in the infoWindow is important. Inside of the infoWindow, there
is a <div> box that contains a blowup map. The counter enables us to
create a <div> box with a different id each time that we click on
the marker. If you don't do this, then for some reason unknown to me, the
blowup map will appear in the infoWindow only for the first time that you
click on the marker. (I guess it has something to do with objects being
destroyed too soon, or something like that.) (Many thanks to april@syclo.com
over in
Google-Maps-API discussion for coming up with the idea of putting a
<div> box into the infoWindow.)
Questions? Send them to "maps at counterexample dot org". (You will need to
undo the spam avoidance in order for that email address to work.)