Fix Add icon menu to include sidc link

CHANGELOG.md

@@ -1,6 +1,6 @@
 ### Change Log for Node-RED Worldmap
 
- - v2.21.7 - Let SIDC/icon short code be only 4 chars long
+ - v2.21.8 - Let SIDC/icon short code be only 4 chars long
  - v2.21.5 - Fix handling of "old" ship nav to ship navigation
  - v2.21.4 - Fix speed leader length. Add transparentPixels option.
  - v2.21.3 - Add zoom to bounds action. Adjust map layers max zoom levels.

README.md

@@ -11,7 +11,7 @@ map web page for plotting "things" on.
 
 ### Updates
 
-- v2.21.7 - Let SIDC/icon short code be only 4 chars long
+- v2.21.8 - Let SIDC/icon short code be only 4 chars long
 - v2.21.5 - Fix handling of "old" ship nav to ship navigation
 - v2.21.4 - Fix speed leader length. Add transparentPixels option..
 - v2.21.3 - Add zoom to bounds action. Adjust map layers max zoom levels.

package.json

@@ -1,6 +1,6 @@
 {
     "name": "node-red-contrib-web-worldmap",
-    "version": "2.21.7",
+    "version": "2.21.8",
     "description": "A Node-RED node to provide a web page of a world map for plotting things on.",
     "dependencies": {
         "@turf/bezier-spline": "~6.5.0",

worldmap/worldmap.js

@@ -653,7 +653,8 @@ map.on('moveend', function() {
 //});
 
 // single right click to add a marker
-var addmenu = "<b>Add marker</b><br><input type='text' id='rinput' autofocus onkeydown='if (event.keyCode == 13) addThing();' placeholder='name (,icon, layer, colour, heading)'/>";
+var addmenu = "<b>Add marker</b><br><input type='text' id='rinput' autofocus onkeydown='if (event.keyCode == 13) addThing();' placeholder='name (,icon/SIDC, layer, colour, heading)'/>";
+if (navigator.onLine) { addmenu += '<br/><a href="https://spatialillusions.com/unitgenerator/" target="_new">MilSymbol SIDC generator</a>'; }
 var rightmenuMap = L.popup({keepInView:true, minWidth:250}).setContent(addmenu);
 
 var rclk = {};