diff --git a/index.html b/index.html
index fa957b991..9d9a1ed60 100644
--- a/index.html
+++ b/index.html
@@ -46,6 +46,7 @@
         <script src='js/id/ui/layerswitcher.js'></script>
         <script src='js/id/ui/contributors.js'></script>
         <script src='js/id/ui/geocoder.js'></script>
+        <script src='js/id/ui/geolocate.js'></script>
         <script src='js/id/ui/notice.js'></script>
         <script src='js/id/ui/tag_reference.js'></script>
 
diff --git a/js/id/actions/reverse_way.js b/js/id/actions/reverse_way.js
index a6ba24518..ca3bd03e3 100644
--- a/js/id/actions/reverse_way.js
+++ b/js/id/actions/reverse_way.js
@@ -31,7 +31,7 @@ iD.actions.ReverseWay = function(wayId) {
     var replacements = [
         [/:right$/, ':left'], [/:left$/, ':right'],
         [/:forward$/, ':backward'], [/:backward$/, ':forward']
-    ], numeric = /^([+-]?)(?=[\d.])/;
+    ], numeric = /^([+\-]?)(?=[\d.])/;
 
     function reverseKey(key) {
         for (var i = 0; i < replacements.length; ++i) {
diff --git a/js/id/id.js b/js/id/id.js
index ee8775b56..cb0c5f82c 100644
--- a/js/id/id.js
+++ b/js/id/id.js
@@ -184,20 +184,9 @@ window.iD = function(container) {
                         return d[0] + ' icon';
                     });
 
-        function geolocateSuccess(position) {
-            map.center([position.coords.longitude, position.coords.latitude]);
-        }
-        function geolocateError() { }
         if (navigator.geolocation) {
             container.append('div')
-                .attr('class', 'geolocate-control map-control')
-                .append('button')
-                .attr('class', 'narrow')
-                .attr('title', 'Show My Location')
-                .text('G')
-                .on('click', function() {
-                    navigator.geolocation.getCurrentPosition(geolocateSuccess, geolocateError);
-                });
+                .call(iD.geolocate(map));
         }
 
         var gc = container.append('div').attr('class', 'geocode-control map-control')
diff --git a/js/id/renderer/style.js b/js/id/renderer/style.js
index 99b346329..ccaa6a821 100644
--- a/js/id/renderer/style.js
+++ b/js/id/renderer/style.js
@@ -59,7 +59,7 @@ iD.Style.styleClasses = function() {
         selection.each(function(d) {
             var classes, value = this.className;
 
-            if (value.baseVal != null) value = value.baseVal;
+            if (value.baseVal !== null) value = value.baseVal;
 
             classes = value.trim().split(/\s+/).filter(function(name) {
                 return name.length && !tagClassRe.test(name);
diff --git a/js/id/ui/geolocate.js b/js/id/ui/geolocate.js
new file mode 100644
index 000000000..1d4e1a491
--- /dev/null
+++ b/js/id/ui/geolocate.js
@@ -0,0 +1,22 @@
+iD.geolocate = function(map) {
+
+    function success(position) {
+        map.center([position.coords.longitude, position.coords.latitude]);
+    }
+
+    function error() { }
+
+    return function(selection) {
+        selection
+            .attr('class', 'geolocate-control map-control')
+            .append('button')
+            .attr('class', 'narrow')
+            .attr('title', 'Show My Location')
+            .text('G')
+            .on('click', function() {
+                navigator.geolocation.getCurrentPosition(
+                    success, error);
+            });
+    };
+
+};