Export data

HTML

<link rel="stylesheet" href="http://cdn.leafletjs.com/leaflet-0.7.3/leaflet.css">
<script src="http://cdn.leafletjs.com/leaflet-0.7.3/leaflet.js"></script>
<script src="https://googledrive.com/host/0B55_4P6vMjhIdzUteXhjVDVHYjg/leaflet.ajax.min.js"></script>
<script src="http://code.jquery.com/jquery-2.1.0.min.js"></script>
<div id="map"></div>
<a href="#" download="MyTracks.gpx" id="exportGPX">Export to file</a>

CSS

#map {
    height: 600px;
    width: 100%;
}

JavaScript

var map = L.map('map', {fullscreenControl: true}).setView([44.635, 22.653], 11);
var osm = L.tileLayer('http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png').addTo(map);

var GPXfile;
var trails = new L.GeoJSON.AJAX('https://googledrive.com/host/0B55_4P6vMjhITEU4Ym9iVG8yZUU/trasee.geojson', {
    onEachFeature: function(feature, layer) {
        layer.on({
            click: function () {
                var selectedGeojson = {
                  "type": "FeatureCollection",
                  "features": [
                    {
                      "type": "Feature",
                      "properties": {
                       "name": "Rocka Rolla"
                      },
                      "geometry": {
                        "type": "LineString",
                        "coordinates": feature.geometry.coordinates
                      }
                    }]
                }
                GPXfile = togpx(selectedGeojson);
            }
        })
    }
}).addTo(map);



gpxData = '<?xml version="1.0" encoding="UTF-8" standalone="no" ?>

<gpx version="1.0" creator="Traceify">
<trk>
<name>Road Recorder</name>
<trkseg>
<trkpt lat="23.8290428" lon="90.3721936">
</trkpt>


<trkpt lat="23.82901956" lon="90.37220104">
</trkpt>


<trkpt lat="23.82899712" lon="90.37220594">
</trkpt>


<trkpt lat="23.82897274" lon="90.37220999">
</trkpt>


<trkpt lat="23.82894893" lon="90.37220969">
</trkpt>


<trkpt lat="23.82892655" lon="90.37220949">
</trkpt>


<trkpt lat="23.82890707" lon="90.37220815">
</trkpt>


<trkpt lat="23.82888587" lon="90.37220562">
</trkpt>


<trkpt lat="23.82886571" lon="90.37220366">
</trkpt>


<trkpt lat="23.82884614" lon="90.37220277">
</trkpt>


<trkpt lat="23.82882639" lon="90.37220281">
</trkpt>


<trkpt lat="23.82880628" lon="90.37220389">
</trkpt>


<trkpt lat="23.82878896" lon="90.37220586">
</trkpt>


<trkpt lat="23.82877563" lon="90.37220816">
</trkpt>


<trkpt lat="23.8287647" lon="90.37221243">
</trkpt>


<trkpt lat="23.82875771"...