diff --git a/app/assets/javascripts/index.js b/app/assets/javascripts/index.js
index 39d416ba9..710095e2d 100644
--- a/app/assets/javascripts/index.js
+++ b/app/assets/javascripts/index.js
@@ -75,12 +75,12 @@ $(document).ready(function () {
     uiPane: uiPane
   }).addTo(map);
 
-  L.control.note({
+  L.OSM.note({
     position: 'topright',
     uiPane: uiPane
   }).addTo(map);
 
-  L.control.share({
+  L.OSM.share({
     getUrl: getShortUrl,
     uiPane: uiPane
   }).addTo(map);
diff --git a/app/assets/javascripts/leaflet.key.js b/app/assets/javascripts/leaflet.key.js
index 4cab964c9..5756f0c41 100644
--- a/app/assets/javascripts/leaflet.key.js
+++ b/app/assets/javascripts/leaflet.key.js
@@ -1,25 +1,19 @@
-L.OSM.Key = L.Control.extend({
-  onAdd: function (map) {
-    this._map = map;
-    this._initLayout();
-    return this.$container[0];
-  },
+L.OSM.key = function(options) {
+  var control = L.control(options);
 
-  _initLayout: function () {
-    var map = this._map;
-
-    this.$container = $('<div>')
+  control.onAdd = function (map) {
+    var $container = $('<div>')
       .attr('class', 'control-key');
 
-    var link = $('<a>')
+    $('<a>')
       .attr('class', 'control-button')
       .attr('href', '#')
       .attr('title', 'Map Key')
       .html('<span class="icon key"></span>')
-      .appendTo(this.$container);
-  }
-});
+      .appendTo($container);
 
-L.OSM.key = function(options) {
-  return new L.OSM.Key(options);
+    return $container[0];
+  };
+
+  return control;
 };
diff --git a/app/assets/javascripts/leaflet.layers.js b/app/assets/javascripts/leaflet.layers.js
index 09cf1cf60..bbc84701c 100644
--- a/app/assets/javascripts/leaflet.layers.js
+++ b/app/assets/javascripts/leaflet.layers.js
@@ -1,15 +1,10 @@
-L.OSM.Layers = L.Control.extend({
-  onAdd: function (map) {
-    this._map = map;
-    this._initLayout();
-    return this.$container[0];
-  },
+L.OSM.layers = function(options) {
+  var control = L.control(options);
 
-  _initLayout: function () {
-    var map = this._map,
-      layers = this.options.layers;
+  control.onAdd = function (map) {
+    var layers = options.layers;
 
-    this.$container = $('<div>')
+    var $container = $('<div>')
       .attr('class', 'control-layers');
 
     var link = $('<a>')
@@ -17,20 +12,21 @@ L.OSM.Layers = L.Control.extend({
       .attr('href', '#')
       .attr('title', 'Layers')
       .html('<span class="icon layers"></span>')
-      .appendTo(this.$container);
+      .on('click', toggle)
+      .appendTo($container);
+
+    var $ui = $('<div>')
+      .attr('class', 'layers-ui')
+      .appendTo(options.uiPane);
+
+    $('<h2>')
+      .text(I18n.t('javascripts.map.layers.header'))
+      .appendTo($ui);
 
     if (OSM.STATUS != 'api_offline' && OSM.STATUS != 'database_offline') {
-      this.$ui = $('<div>')
-        .attr('class', 'layers-ui')
-        .appendTo(this.options.uiPane);
-
-      $('<h2>')
-        .text(I18n.t('javascripts.map.layers.header'))
-        .appendTo(this.$ui);
-
       var overlaySection = $('<section>')
         .addClass('overlay-layers')
-        .appendTo(this.$ui);
+        .appendTo($ui);
 
       $('<p>')
         .text(I18n.t('javascripts.map.layers.overlays'))
@@ -72,7 +68,7 @@ L.OSM.Layers = L.Control.extend({
 
     var baseSection = $('<section>')
       .addClass('base-layers')
-      .appendTo(this.$ui);
+      .appendTo($ui);
 
     $('<p>')
       .text(I18n.t('javascripts.map.layers.base'))
@@ -128,29 +124,27 @@ L.OSM.Layers = L.Control.extend({
       });
     });
 
-    $(link).on('click', $.proxy(this.toggleLayers, this));
-  },
+    function toggle(e) {
+      e.stopPropagation();
+      e.preventDefault();
 
-  toggleLayers: function (e) {
-    e.stopPropagation();
-    e.preventDefault();
+      var controlContainer = $('.leaflet-control-container .leaflet-top.leaflet-right');
 
-    var controlContainer = $('.leaflet-control-container .leaflet-top.leaflet-right');
+      if ($ui.is(':visible')) {
+        $(control.options.uiPane).hide();
+        controlContainer.css({paddingRight: '0'});
+      } else {
+        $(control.options.uiPane).show();
+        controlContainer.css({paddingRight: '230px'});
+      }
 
-    if (this.$ui.is(':visible')) {
-      $(this.options.uiPane).hide();
-      controlContainer.css({paddingRight: '0'});
-    } else {
-      $(this.options.uiPane).show();
-      controlContainer.css({paddingRight: '230px'});
+      $ui.find('.base-layers .leaflet-container').each(function() {
+        $(this).data('map').invalidateSize();
+      });
     }
 
-    this.$ui.find('.base-layers .leaflet-container').each(function() {
-      $(this).data('map').invalidateSize();
-    });
-  }
-});
+    return $container[0];
+  };
 
-L.OSM.layers = function(options) {
-  return new L.OSM.Layers(options);
+  return control;
 };
diff --git a/app/assets/javascripts/leaflet.note.js b/app/assets/javascripts/leaflet.note.js
index 24f18f7ab..68e09c88d 100644
--- a/app/assets/javascripts/leaflet.note.js
+++ b/app/assets/javascripts/leaflet.note.js
@@ -1,39 +1,31 @@
-L.Control.Note = L.Control.extend({
-    options: {
-        position: 'topright',
-        title: 'Notes',
-    },
+L.OSM.note = function (options) {
+  var control = L.control(options);
 
-    onAdd: function (map) {
-        var className = 'control-note',
-            container = L.DomUtil.create('div', className);
+  control.onAdd = function (map) {
+    var $container = $('<div>')
+      .attr('class', 'control-note');
 
-        var link = L.DomUtil.create('a', 'control-button', container);
-        link.innerHTML = "<span class='icon note'></span>";
-        link.href = '#';
-        link.title = this.options.title;
+    $('<a>')
+      .attr('class', 'control-button')
+      .attr('href', '#')
+      .attr('title', 'Notes')
+      .html('<span class="icon note"></span>')
+      .on('click', toggle)
+      .appendTo($container);
 
-        L.DomEvent
-            .on(link, 'click', L.DomEvent.stopPropagation)
-            .on(link, 'click', L.DomEvent.preventDefault)
-            .on(link, 'click', this._toggle, this)
-            .on(link, 'dblclick', L.DomEvent.stopPropagation);
+    function toggle(e) {
+      e.stopPropagation();
+      e.preventDefault();
 
-        this.map = map;
-
-        return container;
-    },
-
-    // TODO: this relies on notesLayer on the map
-    _toggle: function() {
-        if (this.map.hasLayer(this.map.noteLayer)) {
-            this.map.removeLayer(this.map.noteLayer);
-        } else {
-            this.map.addLayer(this.map.noteLayer);
-        }
+      if (map.hasLayer(map.noteLayer)) {
+        map.removeLayer(map.noteLayer);
+      } else {
+        map.addLayer(map.noteLayer);
+      }
     }
-});
 
-L.control.note = function(options) {
-    return new L.Control.Note(options);
+    return $container[0];
+  };
+
+  return control;
 };
diff --git a/app/assets/javascripts/leaflet.share.js b/app/assets/javascripts/leaflet.share.js
index d43f99b1d..548be3fcc 100644
--- a/app/assets/javascripts/leaflet.share.js
+++ b/app/assets/javascripts/leaflet.share.js
@@ -1,60 +1,54 @@
-L.Control.Share = L.Control.extend({
-    options: {
-        position: 'topright',
-        title: 'Share',
-        url: function(map) {
-            return '';
-        }
-    },
+L.OSM.share = function (options) {
+  var control = L.control(options);
 
-    onAdd: function (map) {
-        var className = 'control-share',
-            container = L.DomUtil.create('div', className);
+  control.onAdd = function (map) {
+    var $container = $('<div>')
+      .attr('class', 'control-share');
 
-        var link = L.DomUtil.create('a', 'control-button', container);
-        link.innerHTML = "<span class='icon share'></span>";
-        link.href = '#';
-        link.title = this.options.title;
+    $('<a>')
+      .attr('class', 'control-button')
+      .attr('href', '#')
+      .attr('title', 'Share')
+      .html('<span class="icon share"></span>')
+      .on('click', toggle)
+      .appendTo($container);
 
-        this._uiPane = this.options.uiPane;
+    var $ui = $('<div>')
+      .attr('class', 'share-ui')
+      .appendTo(options.uiPane);
 
-        this._map = map;
+    $('<h2>')
+      .text(I18n.t('javascripts.share.title'))
+      .appendTo($ui);
 
-        var h2 = L.DomUtil.create('h2', '', this._uiPane);
-        h2.innerHTML = I18n.t('javascripts.share.title');
+    var $input = $('<input>')
+      .appendTo($ui);
 
-        this._linkInput = L.DomUtil.create('input', '', this._uiPane);
+    map.on('moveend layeradd layerremove', update);
 
-        L.DomEvent
-            .on(link, 'click', L.DomEvent.stopPropagation)
-            .on(link, 'click', L.DomEvent.preventDefault)
-            .on(link, 'click', this._toggle, this)
-            .on(link, 'dblclick', L.DomEvent.stopPropagation);
+    function toggle(e) {
+      e.stopPropagation();
+      e.preventDefault();
 
-        map.on('moveend layeradd layerremove', this._update, this);
+      var controlContainer = $('.leaflet-control-container .leaflet-top.leaflet-right');
 
-        return container;
-    },
-
-    _update: function (e) {
-        var center = this._map.getCenter().wrap();
-        var layers = getMapLayers(this._map);
-        this._linkInput.value = this.options.getUrl(this._map);
-    },
-
-    _toggle: function() {
-        var controlContainer = $('.leaflet-control-container .leaflet-top.leaflet-right');
-
-        if ($(this._uiPane).is(':visible')) {
-            $(this._uiPane).hide();
-            controlContainer.css({paddingRight: '0'});
-        } else {
-            $(this._uiPane).show();
-            controlContainer.css({paddingRight: '200px'});
-        }
+      if ($ui.is(':visible')) {
+        $(control.options.uiPane).hide();
+        controlContainer.css({paddingRight: '0'});
+      } else {
+        $(control.options.uiPane).show();
+        controlContainer.css({paddingRight: '200px'});
+      }
     }
-});
 
-L.control.share = function(options) {
-    return new L.Control.Share(options);
+    function update() {
+      var center = map.getCenter().wrap();
+      var layers = getMapLayers(map);
+      $input.val(options.getUrl(map));
+    }
+
+    return $container[0];
+  };
+
+  return control;
 };