direction service

<script type="text/javascript">

    var map; var drds = []; var drdds = []; var rqs = [];

    window.onload = function () {

        var chicago = new google.maps.LatLng(41.850033, -87.6500523);

        var mapOptions = {

            zoom: 7,

            mapTypeId: google.maps.MapTypeId.ROADMAP,

            center: chicago

        }

        map = new google.maps.Map(document.getElementById('map_canvas'), mapOptions);

        var ltlgn = ["Hyderabad", "Mumabai", "Pune", "Shirdi", "Bangalore"];

        for (var i = 0; i < ltlgn.length; i++) {

            var request = {

                origin: ltlgn[i],

                destination: ltlgn[i + 1],

                travelMode: google.maps.DirectionsTravelMode.DRIVING

            };

            rqs.push(request);

        }

        for (var i = 0; i < 3; i++) {

            var directionsDisplay = directionsDisplay + i;

            directionsDisplay = new google.maps.DirectionsRenderer();

            directionsDisplay.setMap(map);

            drds.push(directionsDisplay);

            var directionsService = directionsService + i;

            directionsService = new google.maps.DirectionsService();

            drdds.push(directionsService);

            setTimeout(d(i), 2000)

        }

    }

    function d(i) {

        drdds[i].route(rqs[i], function (response, status) {

            if (status == google.maps.DirectionsStatus.OK) {

                drds[i].setDirections(response);

            }

        });

    }

</script>

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