$(document).ready(function () {

    var drawControl = new L.Control.Draw({
        draw: {
            polygon: false,
            rectangle: false,
            polyline: false,
            circle: false
        },
        edit: {
            featureGroup: drawnItems,
            edit: false
        }
    });

    map.addControl(drawControl);

    map.on(L.Draw.Event.CREATED, function (e) {
        var layer = e.layer;
        loc = new L.latLng(layer._latlng);
        drawMarker();
        setDataValue();
    });

});