[Rails] how to use javascript to update markers on Google maps

[skrite]

Hey all,
i have a google map and i am drawing circles on the map like this..


 var latlng = new google.maps.LatLng(35.931387,
-102.31062);
    var myMapOptions =
{
      zoom:
12,
      center:
latlng,
      mapTypeId:
google.maps.MapTypeId.HYBRID
    };

    var map = new
google.maps.Map(document.getElementById("map_canvas"),
myMapOptions);
    var infoWindow = new
google.maps.InfoWindow();
    var markerBounds = new
google.maps.LatLngBounds();


   <% @mapped_sites.each do |row|
%>

        // main
circle
        center = new google.maps.LatLng(<%= "#{row[0]}" %>, <%=
"#{row[1]}"
%>);
        siteCircle =
makeMarker({
          position:
center,
          strokeColor:
"#FF0000",
          strokeOpacity:
0.8,
          strokeWeight:
2,
          fillColor: '<%= "#{row[7]}"
%>',
          fillOpacity:
0.75,
          radius:
560,
          map:
map,
          center:
center,
          radius: <%= "#{row[2]}"
%>,
          title: '<%= "#{row[5]}"
%>',
          content: '<%= "some contnet
%>'
       });

       markerArray.push(siteCircle);

my question is, that since the fillColor is going to change from time
to time, i want to update all the colors of the circles periodically.
What i don't know how to do is get the equivelent to the
@mapped_sites  because if i could, i think i could just delete the
existing circles and draw new ones.

How do i get info back from the server periodically to update the
circle colors?

thanks to all.
skrite



-- 
You received this message because you are subscribed to the Google Groups "Ruby 
on Rails: Talk" group.
To post to this group, send email to rubyonrails-talk@googlegroups.com.
To unsubscribe from this group, send email to 
rubyonrails-talk+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/rubyonrails-talk?hl=en.