diff --git a/band-plan.html b/band-plan.html
index e9adc09..6e24264 100644
--- a/band-plan.html
+++ b/band-plan.html
@@ -31,15 +31,15 @@ div>label {
 	<script>
 		// require in browser-cjs
 		// eslint-disable-next-line no-undef
-		const yaml = require('https://unpkg.com/js-yaml/dist/js-yaml.min.js');
+		const yaml = require("https://unpkg.com/js-yaml/dist/js-yaml.min.js");
 		// eslint-disable-next-line no-undef
-		const Measures = require('https://unpkg.com/measures/dist/measures.cjs.js');
+		const Measures = require("https://unpkg.com/measures/dist/measures.cjs.js");
 		// eslint-disable-next-line no-undef
-		const path = require('https://unpkg.com/path-browserify/index.js');
+		const path = require("https://unpkg.com/path-browserify/index.js");
 
 		function create_element_link(element, href) {
 			element.addEventListener("click", () => {
-				let lnk = document.createElement('a');
+				let lnk = document.createElement("a");
 
 				if (typeof href === "function") {
 					lnk.href = href();
@@ -59,7 +59,7 @@ div>label {
 			});
 		}
 
-		document.addEventListener('DOMContentLoaded', () => {
+		document.addEventListener("DOMContentLoaded", () => {
 			location.search.substr(1).split("&").forEach((param) => {
 				let p = param.split("=");
 				let key = p[0];
@@ -75,14 +75,14 @@ div>label {
 			["base", "extension"].forEach((id) => {
 				create_element_link(document.getElementById("download_" + id), document.getElementById(id + "_plan").value);
 				document.getElementById("download_" + id).addEventListener("keydown", (event) => {
-					if (event.key === 'Enter') {
+					if (event.key === "Enter") {
 						update_plan()
 					}
 				});
 			});
 
 			create_element_link(document.getElementById("create_link"), function() {
-				return window.location.href.split('?')[0] + '?'
+				return window.location.href.split("?")[0] + "?"
 					+ "base=" + document.getElementById("base_plan").value
 					+ "&ext=" + document.getElementById("extension_plan").value;
 			});
@@ -90,7 +90,7 @@ div>label {
 
 		// eslint-disable-next-line no-unused-vars
 		function filter_with_not(headerValue, rowValue, rowData, filterParams){
-			if (headerValue.startsWith('!')) {
+			if (headerValue.startsWith("!")) {
 				// filter not
 				const str = headerValue.slice(1);
 				if ((str.length > 0) && (typeof rowValue !== "undefined")) {
@@ -123,9 +123,9 @@ div>label {
 		function add_column(row, cols, header) {
 			header.columns.forEach((col) => {
 				if (header.columns.includes(col)) {
-					if (typeof cols[col] === 'object') {
+					if (typeof cols[col] === "object") {
 						for (const [key, value] of Object.entries(cols[col])) {
-							row[col + '_' + key] = value;
+							row[col + "_" + key] = value;
 						}
 					} else {
 						row[col] = cols[col];
@@ -179,7 +179,7 @@ div>label {
 						if ((typeof ext.header === "undefined") || (ext.header == false)) {
 							add_column(row, base, header["base"]);
 
-							let [ext_start, ext_end] = ext.frequency.split('-');
+							let [ext_start, ext_end] = ext.frequency.split("-");
 							if (typeof base.frequency === "number") {
 								// at single frequency 
 								if (isInRange(base.frequency, ext_start, ext_end)) {
@@ -189,7 +189,7 @@ div>label {
 								}
 							} else {
 								// frequeny range
-								let [base_start, base_end] = base.frequency.split('-');
+								let [base_start, base_end] = base.frequency.split("-");
 								if (isInRange(base_start, ext_start, ext_end) && isInRange(base_end, ext_start, ext_end)) {
 									// base range is inside of ext range or the same
 									add_column(row, ext, header["extension"]);
@@ -200,7 +200,7 @@ div>label {
 										let r = structuredClone(row);
 										let start = ext_start;
 										let end = base_end < ext_end ? base_end : ext_end;
-										r["frequency"] = start + '-' + end;
+										r["frequency"] = start + "-" + end;
 										add_column(r, ext, header["extension"]);
 										tdata.push(r);
 										already_added = true;
@@ -209,7 +209,7 @@ div>label {
 										let r = structuredClone(row);
 										let start = base_start;
 										let end = ext_end;
-										r["frequency"] = start + '-' + end;
+										r["frequency"] = start + "-" + end;
 										add_column(r, ext, header["extension"]);
 										tdata.push(r);
 										already_added = true;
@@ -241,7 +241,7 @@ div>label {
 					definitions.forEach((column) => {
 						if (column.field == "band") {
 							column.sorter = function(a, b) {
-								return parseFloat(new	Measures().from(a).to('m')) - parseFloat(new Measures().from(b).to('m'));
+								return parseFloat(new	Measures().from(a).to("m")) - parseFloat(new Measures().from(b).to("m"));
 							}
 						}
 
@@ -270,7 +270,7 @@ div>label {
 				}
 				table.download(
 					"pdf",
-					path.basename(document.getElementById('base_plan').value, '.yml') + '.pdf',
+					path.basename(document.getElementById("base_plan").value, ".yml") + ".pdf",
 					{ orientation:"portrait" },
 					download_range);
 			});
@@ -293,8 +293,8 @@ div>label {
 
 		function update_plan() {
 			Promise.all([
-				fetch(document.getElementById('base_plan').value, {	mode: 'cors' }),
-				fetch(document.getElementById('extension_plan').value, {	mode: 'cors' }),
+				fetch(document.getElementById("base_plan").value, {	mode: "cors" }),
+				fetch(document.getElementById("extension_plan").value, {	mode: "cors" }),
 			]).then((res) => {
 				res.forEach((r) => {
 					if (!r.ok) {
@@ -319,12 +319,12 @@ div>label {
 		// eslint-disable-next-line no-unused-vars
 		function help() {
 			alert(
-				'Base plan and Extension plan: use your own yml file for a band plan, URLs are possible, CORS needs to be allowed for the files, download standard files for examples\n'
-				+ 'Filter rows with text in column headings, use filter starting with "!" as exclusion\n'
-				+ 'Download list: saves .pdf of the current list (selection of rows apply)\n'
-				+ 'Selection of rows with mouse possible\n'
-				+ 'Download plans: get the yml plans\n'
-				+ 'Create link: get link for currently selected plans for bookmarking\n'
+				"Base plan and Extension plan: use your own yml file for a band plan, URLs are possible, CORS needs to be allowed for the files, download standard files for examples\n"
+				+ "Filter rows with text in column headings, use filter starting with \"!\" as exclusion\n"
+				+ "Download list: saves .pdf of the current list (selection of rows apply)\n"
+				+ "Selection of rows with mouse possible\n"
+				+ "Download plans: get the yml plans\n"
+				+ "Create link: get link for currently selected plans for bookmarking\n"
 			);
 		}
 	</script>