Add markers from within jQuery $.get callback

[bennyhill]

I can't seem to add a marker to a map from within a callback function.  I have this code.

        var map;

$.get(url, function(data) {

var coordinates = JSON.parse(data);

var latlng = new google.maps.LatLng(coordinates[0], coordinates[1]);

var myOptions = {

         center: latlng,

         zoom: 10,

         mapTypeId: google.maps.MapTypeId.ROADMAP

       };

   

map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);

var marker = new google.maps.Marker(

           { position: new google.maps.LatLng(41.7056381, -72.5559746),

             map: map

           });

});

The map shows up in the page fine but no marker.  If I move all this code from outside the callback it works with the marker.  Any thoughts?  Been at this for two hours now.  

[Alan Pearce]

If you could provide a link to the code running somewhere it would
help someone debug it.