Resolve JS error when converting timestamps

TypeError: Cannot read property 'datetime' of undefined
1 File https://bnetdocs.org/a/BNETDocs.js line 2 col 680 in
BNETDocs.fTimeToLocale
2 File https://bnetdocs.org/a/BNETDocs.js line 5 col 86 in
BNETDocs.window.onload

Author: carlbennett

src/static/a/BNETDocs.js

@@ -26,6 +26,37 @@ function BNETDocs() {
 
   var self = this;
 
+  this.dateToString = function(x) {
+    var y = '';
+    switch (x.getDay()) {
+      case 0: y += 'Sun'; break;
+      case 1: y += 'Mon'; break;
+      case 2: y += 'Tue'; break;
+      case 3: y += 'Wed'; break;
+      case 4: y += 'Thu'; break;
+      case 5: y += 'Fri'; break;
+      case 6: y += 'Sat'; break;
+    }
+    y += ', ';
+    switch (x.getMonth()) {
+      case 0:  y += 'Jan'; break;
+      case 1:  y += 'Feb'; break;
+      case 2:  y += 'Mar'; break;
+      case 3:  y += 'Apr'; break;
+      case 4:  y += 'May'; break;
+      case 5:  y += 'Jun'; break;
+      case 6:  y += 'Jul'; break;
+      case 7:  y += 'Aug'; break;
+      case 8:  y += 'Sep'; break;
+      case 9:  y += 'Oct'; break;
+      case 10: y += 'Nov'; break;
+      case 11: y += 'Dec'; break;
+    }
+    y += ' ' + x.getDate() + ' ' + x.getFullYear();
+    y += ' at ' + x.toLocaleTimeString();
+    return y;
+  };
+
   this.fHookExternalAnchors = function() {
     for (var id in document.links) {
       var link = document.links[id];
@@ -77,41 +108,16 @@ function BNETDocs() {
   this.fTimeToLocale = function() {
     var timestamps = document.getElementsByTagName('time');
     for (var id in timestamps) {
-      if (timestamps[id].attributes.datetime === undefined) continue;
+      if (self.isNumeric(id) &&
+        timestamps[id].attributes.datetime === undefined
+      ) continue;
       var d = new Date(timestamps[id].attributes.datetime.value);
       timestamps[id].innerText = self.dateToString(d);
     }
   };
 
-  this.dateToString = function(x) {
-    var y = '';
-    switch (x.getDay()) {
-      case 0: y += 'Sun'; break;
-      case 1: y += 'Mon'; break;
-      case 2: y += 'Tue'; break;
-      case 3: y += 'Wed'; break;
-      case 4: y += 'Thu'; break;
-      case 5: y += 'Fri'; break;
-      case 6: y += 'Sat'; break;
-    }
-    y += ', ';
-    switch (x.getMonth()) {
-      case 0:  y += 'Jan'; break;
-      case 1:  y += 'Feb'; break;
-      case 2:  y += 'Mar'; break;
-      case 3:  y += 'Apr'; break;
-      case 4:  y += 'May'; break;
-      case 5:  y += 'Jun'; break;
-      case 6:  y += 'Jul'; break;
-      case 7:  y += 'Aug'; break;
-      case 8:  y += 'Sep'; break;
-      case 9:  y += 'Oct'; break;
-      case 10: y += 'Nov'; break;
-      case 11: y += 'Dec'; break;
-    }
-    y += ' ' + x.getDate() + ' ' + x.getFullYear();
-    y += ' at ' + x.toLocaleTimeString();
-    return y;
+  this.isNumeric = function(n) {
+    return !isNaN(parseFloat(n)) && isFinite(n);
   }
 
   window.onload = function() {