diff --git a/frontend-js/src/main/js/gui/leftPanel/DrugPanel.js b/frontend-js/src/main/js/gui/leftPanel/DrugPanel.js
index c7b0fe717e1662bcc78555a718618d6730416e83..0d7b10cbb01e3e457b5c49d1eaab7cb2a8f65570 100644
--- a/frontend-js/src/main/js/gui/leftPanel/DrugPanel.js
+++ b/frontend-js/src/main/js/gui/leftPanel/DrugPanel.js
@@ -8,6 +8,12 @@ var logger = require('../../logger');
 var AbstractDbPanel = require('./AbstractDbPanel');
 var PanelControlElementType = require('../PanelControlElementType');
 
+/**
+ *
+ * @param params
+ * @constructor
+ * @extends AbstractDbPanel
+ */
 function DrugPanel(params) {
   params.panelName = "drug";
   params.helpTip = '<p>source: <a target="_drugbank" href="http://www.drugbank.ca/">DrugBank</a> and '
diff --git a/frontend-js/src/main/js/map/OverlayParser.js b/frontend-js/src/main/js/map/OverlayParser.js
index 8feaa20016c09aedf80b40d5f88c94eac604e83a..72fc466358ac3bc06fb988402834959eca341687 100644
--- a/frontend-js/src/main/js/map/OverlayParser.js
+++ b/frontend-js/src/main/js/map/OverlayParser.js
@@ -15,7 +15,7 @@ OverlayParser.prototype.parse = function (content) {
   var lines = content.split("\n");
   for (var i = 0; i < lines.length; i++) {
     var line = lines[i];
-    if (line.startsWith("#")) {
+    if (line.indexOf("#") === 0) {
       if (line.indexOf("=") > 0) {
         var name = line.substring(1, line.indexOf("=")).trim();
         var value = line.substring(line.indexOf("=") + 1).trim();