custom kml layer function

html/script.js

@@ -156,6 +156,7 @@ let MessageRate = 0;
 
 let layers;
 let layers_group;
+let custom_layers;
 
 const nullStyle = new ol.style.Style({});
 
@@ -7720,5 +7721,20 @@ if (adsbexchange && window.location.hostname.startsWith('inaccurate')) {
     jQuery('#inaccurate_warning').removeClass('hidden');
 }
 
+function add_kml_overlay(url, name, opacity) {
+    custom_layers.push(new ol.layer.Vector({
+        source: new ol.source.Vector({
+            url: url,
+            format: new ol.format.KML(),
+        }),
+        name: name,
+        title: 'custom_' + name,
+        type: 'overlay',
+        opacity: opacity,
+        visible: true,
+        zIndex: 99,
+    }));
+}
+
 parseURLIcaos();
 initialize();