google maps api 3 route finder (distance of POI from route) - google-maps-api-3

Question

I have the following code which is successfully plotting a route between two points. However I wish to search a recordset to see which georeferences lie within a range of this route. E.g. 50 yards off the main route
function plot_route() {
var rendererOptions = { map: map };
directionsDisplay = new google.maps.DirectionsRenderer(rendererOptions);
var org = new google.maps.LatLng ( $("#start_lat").html(), $("#start_long").html() );
var dest = new google.maps.LatLng ( $("#finish_lat").html(), $("#finish_long").html() );
if ($("#via_lat").html() != "") {
var point1 = new google.maps.LatLng($("#via_lat").html(), $("#via_long").html());
}
else
{
point1 = dest;
}
var wps = [{ location: point1 }];
if (($("#start_lat").html() != "") && ($("#finish_lat").html() != "")) {
var request = {
origin: org,
destination: dest,
waypoints: wps,
travelMode: google.maps.DirectionsTravelMode.DRIVING
};
directionsService = new google.maps.DirectionsService();
directionsService.route(request, function(response, status) {
if (status == google.maps.DirectionsStatus.OK) {
directionsDisplay.setDirections(response);
}
else
alert ('failed to get directions');
});
}
}
I have tried breaking down the response but it shows that the calculation does not return an array of values to make up the route.
Has anyone conquered this one before?
edit
Digging Deeper, it seems the response does contain the array of route points. For those in the community who are looking for help rather than contributions from people gung ho with the -1 button i attach the following
function plot_route() {
var rendererOptions = { map: map };
directionsDisplay = new google.maps.DirectionsRenderer(rendererOptions);
var org = new google.maps.LatLng ( $("#start_lat").html(), $("#start_long").html() );
var dest = new google.maps.LatLng ( $("#finish_lat").html(), $("#finish_long").html() );
if ($("#via_lat").html() != "") {
var point1 = new google.maps.LatLng($("#via_lat").html(), $("#via_long").html());
}
else
{
point1 = dest;
}
var wps = [{ location: point1 }];
if (($("#start_lat").html() != "") && ($("#finish_lat").html() != "")) {
var request = {
origin: org,
destination: dest,
waypoints: wps,
travelMode: google.maps.DirectionsTravelMode.DRIVING
};
directionsService = new google.maps.DirectionsService();
directionsService.route(request, function(response, status) {
if (status == google.maps.DirectionsStatus.OK) {
var myroute = response.routes[0];
if(myroute)
{
$.each(myroute, function(key, value) {
if (key == "overview_path") {
alert(value); //the array of points for the route
}
});
}
directionsDisplay.setDirections(response);
}
else
alert ('failed to get directions');
});
}
}