RegionChooser : Don't allow multiple polygons

website/script/simstadt_openlayers.js

 //TODO: Add zoom to extent as control
-//TODO: Don't allow multiple sketch
 //TODO: Try to leave everything in 4326 
 
 var reset_btn = $('#reset')[0];
@@ -57,8 +56,8 @@ vectorSource.addMarker = function(x, y, name) {
 	}));
 }
 
-//vectorSource.addMarker(3536859.19, 5438902.94, "BRUSE");
-//vectorSource.addMarker(3533399.8907172694, 5439126.050470325, "MyPoly");
+// vectorSource.addMarker(3536859.19, 5438902.94, "BRUSE");
+// vectorSource.addMarker(3533399.8907172694, 5439126.050470325, "MyPoly");
 
 var createTextStyle = function(feature, resolution) {
 	var align = "Normal";
@@ -273,7 +272,8 @@ function displayInfo() {
 		var n = coords.length;
 		for (var i = 0; i < n; i++) {
 			var wgs84_coord = coords[i];
-//			wgs84_coords += "regionPolygon.add(new Coord(" + wgs84_coord[1] + "," + wgs84_coord[0] + "));<br/>";
+			// wgs84_coords += "regionPolygon.add(new Coord(" + wgs84_coord[1] +
+			// "," + wgs84_coord[0] + "));<br/>";
 			wgs84_coords += "(" + wgs84_coord[1] + "," + wgs84_coord[0] + ")<br/>";
 
 			var gsk3_coord = ol.proj.transform(coords[i], ol.proj.get('EPSG:4326'), ol.proj.get('EPSG:31467'))
@@ -284,7 +284,6 @@ function displayInfo() {
 		$('#dataPanel').append("GSK3 Coordinates<br/>");
 		$('#dataPanel').append(gsk3_coords + "<br/>\n");
 	}
-	;
 	$('#dataPanel').append("Area" + "<br/>\n");
 	$('#dataPanel').append((Math.round(area / 1000) / 10).toString() + " ha<br/><br/>\n");
 	findIntersections();
@@ -295,7 +294,10 @@ function displayInfo() {
 
 draw.on('drawend', function(e) {
 	displayInfo();
-	send_btn.disabled = false;
+	if (fromJavaFX) {
+		send_btn.disabled = false;
+	}
+	draw.setActive(false);
 });
 
 $('#reset').click(function() {
@@ -304,6 +306,7 @@ $('#reset').click(function() {
 	} finally {
 		$('#dataPanel').empty();
 		$("html").removeClass("wait");
+		draw.setActive(true);
 		featureOverlay.getFeatures().clear();
 		intersections.clear();
 		reset_btn.disabled = true;