> GEvent.addListener(map, 'click',
> function(overlay, point) {
When the bare map is clicked, no 'overlay' is supplied.
If an overlay is clicked, no 'point' is supplied.
> if (!overlay) {
> for (var i=0; i<polys.length; i++) {
Okay, so we enter the loop if not-overlay ....
> if (polys[i].Contains(point)) {
> if (overlay) {
But we can only get here if not-overlay so this will never be true
If you only want "one marker", declare a single variable in global
scope.
When handling a click, if the marker variable exists remove it, then
add the new version.
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