> this link http://www.geopeche.fr/ajouter_spot.html
>
> I must have just One marker ! so when I search 2 country the old
> marker don't disappear.
You have defined a global 'marker' at the beginning of your map script
var marker;
and a function placeMarker() that would place or reposition it as
needed.
But your codeAddress() function defines a new local marker
var marker = new google.maps.Marker();
that you don't need at all.
codeAddress() places that new marker
marker.setPosition(results[0].geometry.location);
marker.setMap(map);
instead of using placeMarker() to control the global one.
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