Google Map markers : Same positions, disambiguation needed

disambiguation.js

// source : http://techxplorer.com/2010/02/05/managing-markers-with-the-same-coordinates-in-a-google-map/
// get the coordinates
var hash = points[i].getAttribute("lat") + points[i].getAttribute("lng");
hash = hash.replace(".","").replace(",", "").replace("-","");
// source : http://techxplorer.com/2010/02/05/managing-markers-with-the-same-coordinates-in-a-google-map/
// check to see if we've seen this hash before
if(coords[hash] == null) {
  // get coordinate object
  var latlng = new google.maps.LatLng(parseFloat(points[i].getAttribute("lat")), parseFloat(points[i].getAttribute("lng")));
 
  // store an indicator that we've seen this point before
  coords[hash] = 1;
} else {
 
  // add some randomness to this point
  var lat = parseFloat(points[i].getAttribute("lat")) + (Math.random() -.5) / 1500;
  var lng = parseFloat(points[i].getAttribute("lng")) + (Math.random() -.5) / 1500;
 
  // get the coordinate object
  var latlng = new google.maps.LatLng(lat.toFixed(6), lng.toFixed(6));
}