Avoid using duplicate code

assets/js/admin/sp-setup-geocoder.js

@@ -0,0 +1,54 @@
+//Get variables form input values
+latitude = document.getElementById('sp_latitude').value;
+longitude = document.getElementById('sp_longitude').value;
+	
+//Initialize the map and add the Search control box
+var map = L.map('sp-location-picker').setView([latitude, longitude], 15),
+	geocoder = L.Control.Geocoder.nominatim(),
+	control = L.Control.geocoder({
+		geocoder: geocoder,
+		collapsed: false,
+		defaultMarkGeocode: false
+	}).addTo(map),
+	//Add a marker to use from the begining
+	marker = L.marker([latitude, longitude],{draggable: true, autoPan: true}).addTo(map);
+
+L.tileLayer('http://{s}.tile.osm.org/{z}/{x}/{y}.png', {
+	attribution: '&copy; <a href="http://osm.org/copyright">OpenStreetMap</a> contributors'
+}).addTo(map);
+
+//Pass the values to the fields after dragging
+marker.on('dragend', function (e) {
+	document.getElementById('sp_latitude').value = marker.getLatLng().lat;
+	document.getElementById('sp_longitude').value = marker.getLatLng().lng;
+	geocoder.reverse(marker.getLatLng(), map.options.crs.scale(map.getZoom()), function(results) {
+		var r = results[0];
+		if (r) {
+			document.getElementById('sp_address').value = r.name;
+		}
+	})
+});
+
+//After searching
+control.on('markgeocode', function(e) {
+	var center = e.geocode.center;
+	var address = e.geocode.name;
+	map.setView([center.lat, center.lng], 15); //Center map to the new place
+	map.removeLayer(marker); //Remove previous marker
+	marker = L.marker([center.lat, center.lng],{draggable: true, autoPan: true}).addTo(map); //Add new marker to use
+	//Pass the values to the fields after searching
+	document.getElementById('sp_latitude').value = center.lat;
+	document.getElementById('sp_longitude').value = center.lng;
+	document.getElementById('sp_address').value = address;
+	//Pass the values to the fields after dragging
+	marker.on('dragend', function (e) {
+		document.getElementById('sp_latitude').value = marker.getLatLng().lat;
+		document.getElementById('sp_longitude').value = marker.getLatLng().lng;
+		geocoder.reverse(marker.getLatLng(), map.options.crs.scale(map.getZoom()), function(results) {
+			var r = results[0];
+			if (r) {
+				document.getElementById('sp_address').value = r.name;
+			}
+		})
+	});
+}).addTo(map);