It seems that the tricky lines were missing:) I tried appendChilding
the overview map DIV to main map DIV. I tried setting z-index but I
only saw a short flash of the overview map.
API script overwrites certain style settings of the map DIV to:
overflow: hidden;
background-color: rgb(229, 227, 223);
z-index: 0;
I don't get the idea of z-index overwriting. That can be solved by
setting the z-index of the overview map DIV to some positive number by
'idle' event.
http://koti.mbnet.fi/ojalesa/v3/overview_v3.htm
It is an interesting experiment to see the binding of two MVC objects.
It works both ways. You can drag either of the maps.