diff --git a/deluge/ui/web/js/deluge-all/Deluge.Preferences.Bandwidth.js b/deluge/ui/web/js/deluge-all/Deluge.Preferences.Bandwidth.js
index 76015f1a4..2c8a76d74 100644
--- a/deluge/ui/web/js/deluge-all/Deluge.Preferences.Bandwidth.js
+++ b/deluge/ui/web/js/deluge-all/Deluge.Preferences.Bandwidth.js
@@ -32,6 +32,11 @@ Copyright:
 */
 
 Ext.namespace('Deluge.preferences');
+
+/**
+ * @class Deluge.preferences.Bandwidth
+ * @extends Ext.form.FormPanel
+ */
 Deluge.preferences.Bandwidth = Ext.extend(Ext.form.FormPanel, {
 	constructor: function(config) {
 		config = Ext.apply({
diff --git a/deluge/ui/web/js/deluge-all/Deluge.Preferences.Cache.js b/deluge/ui/web/js/deluge-all/Deluge.Preferences.Cache.js
index bf7868287..f464fc445 100644
--- a/deluge/ui/web/js/deluge-all/Deluge.Preferences.Cache.js
+++ b/deluge/ui/web/js/deluge-all/Deluge.Preferences.Cache.js
@@ -32,6 +32,11 @@ Copyright:
 */
 
 Ext.namespace('Deluge.preferences');
+
+/**
+ * @class Deluge.preferences.Cache
+ * @extends Ext.form.FormPanel
+ */
 Deluge.preferences.Cache = Ext.extend(Ext.form.FormPanel, {
 	constructor: function(config) {
 		config = Ext.apply({
diff --git a/deluge/ui/web/js/deluge-all/Deluge.Preferences.Daemon.js b/deluge/ui/web/js/deluge-all/Deluge.Preferences.Daemon.js
index ac945bc5f..ca5654cbb 100644
--- a/deluge/ui/web/js/deluge-all/Deluge.Preferences.Daemon.js
+++ b/deluge/ui/web/js/deluge-all/Deluge.Preferences.Daemon.js
@@ -32,6 +32,11 @@ Copyright:
 */
 
 Ext.namespace('Deluge.preferences');
+
+/**
+ * @class Deluge.preferences.Daemon
+ * @extends Ext.form.FormPanel
+ */
 Deluge.preferences.Daemon = Ext.extend(Ext.form.FormPanel, {
 	constructor: function(config) {
 		config = Ext.apply({
diff --git a/deluge/ui/web/js/deluge-all/Deluge.Preferences.Downloads.js b/deluge/ui/web/js/deluge-all/Deluge.Preferences.Downloads.js
index 16d89c042..0d83f4c9a 100644
--- a/deluge/ui/web/js/deluge-all/Deluge.Preferences.Downloads.js
+++ b/deluge/ui/web/js/deluge-all/Deluge.Preferences.Downloads.js
@@ -32,6 +32,11 @@ Copyright:
 */
 
 Ext.namespace('Deluge.preferences');
+
+/**
+ * @class Deluge.preferences.Downloads
+ * @extends Ext.form.FormPanel
+ */
 Deluge.preferences.Downloads = Ext.extend(Ext.FormPanel, {
 	constructor: function(config) {
 		config = Ext.apply({
diff --git a/deluge/ui/web/js/deluge-all/Deluge.Preferences.Encryption.js b/deluge/ui/web/js/deluge-all/Deluge.Preferences.Encryption.js
index 8ae55767f..bed23e9a9 100644
--- a/deluge/ui/web/js/deluge-all/Deluge.Preferences.Encryption.js
+++ b/deluge/ui/web/js/deluge-all/Deluge.Preferences.Encryption.js
@@ -32,6 +32,11 @@ Copyright:
 */
 
 Ext.namespace('Deluge.preferences');
+
+/**
+ * @class Deluge.preferences.Encryption
+ * @extends Ext.form.FormPanel
+ */
 Deluge.preferences.Encryption = Ext.extend(Ext.form.FormPanel, {
 	constructor: function(config) {
 		config = Ext.apply({
diff --git a/deluge/ui/web/js/deluge-all/Deluge.Preferences.Interface.js b/deluge/ui/web/js/deluge-all/Deluge.Preferences.Interface.js
index 9b7e1d144..e30ff4a32 100644
--- a/deluge/ui/web/js/deluge-all/Deluge.Preferences.Interface.js
+++ b/deluge/ui/web/js/deluge-all/Deluge.Preferences.Interface.js
@@ -32,6 +32,11 @@ Copyright:
 */
 
 Ext.namespace('Deluge.preferences');
+
+/**
+ * @class Deluge.preferences.Interface
+ * @extends Ext.form.FormPanel
+ */
 Deluge.preferences.Interface = Ext.extend(Ext.form.FormPanel, {
 	constructor: function(config) {
 		config = Ext.apply({
diff --git a/deluge/ui/web/js/deluge-all/Deluge.Preferences.Network.js b/deluge/ui/web/js/deluge-all/Deluge.Preferences.Network.js
index f45307cf5..520075d22 100644
--- a/deluge/ui/web/js/deluge-all/Deluge.Preferences.Network.js
+++ b/deluge/ui/web/js/deluge-all/Deluge.Preferences.Network.js
@@ -33,6 +33,10 @@ Copyright:
 
 Ext.namespace('Deluge.preferences');
 
+/**
+ * @class Deluge.preferences.Network
+ * @extends Ext.form.FormPanel
+ */
 Deluge.preferences.Network = Ext.extend(Ext.form.FormPanel, {
 	constructor: function(config) {
 		config = Ext.apply({
diff --git a/deluge/ui/web/js/deluge-all/Deluge.Preferences.Other.js b/deluge/ui/web/js/deluge-all/Deluge.Preferences.Other.js
index b51b09d1f..ff4368143 100644
--- a/deluge/ui/web/js/deluge-all/Deluge.Preferences.Other.js
+++ b/deluge/ui/web/js/deluge-all/Deluge.Preferences.Other.js
@@ -32,6 +32,11 @@ Copyright:
 */
 
 Ext.namespace('Deluge.preferences');
+
+/**
+ * @class Deluge.preferences.Other
+ * @extends Ext.form.FormPanel
+ */
 Deluge.preferences.Other = Ext.extend(Ext.form.FormPanel, {
 	constructor: function(config) {
 		config = Ext.apply({
diff --git a/deluge/ui/web/js/deluge-all/Deluge.Preferences.Plugins.js b/deluge/ui/web/js/deluge-all/Deluge.Preferences.Plugins.js
index ade7da902..66568aeef 100644
--- a/deluge/ui/web/js/deluge-all/Deluge.Preferences.Plugins.js
+++ b/deluge/ui/web/js/deluge-all/Deluge.Preferences.Plugins.js
@@ -33,7 +33,11 @@ Copyright:
 
 Ext.namespace('Deluge.preferences');
 
-Deluge.preferences.InstallPlugin = Ext.extend(Ext.Window, {
+/**
+ * @class Deluge.preferences.InstallPluginWindow
+ * @extends Ext.Window
+ */
+Deluge.preferences.InstallPluginWindow = Ext.extend(Ext.Window, {
 
 	height: 115,
 	width: 350,
@@ -104,8 +108,11 @@ Deluge.preferences.InstallPlugin = Ext.extend(Ext.Window, {
 		}
 	}
 });
-	
 
+/**
+ * @class Deluge.preferences.Plugins
+ * @extends Ext.Panel
+ */
 Deluge.preferences.Plugins = Ext.extend(Ext.Panel, {
 	constructor: function(config) {
 		config = Ext.apply({
@@ -184,7 +191,7 @@ Deluge.preferences.Plugins = Ext.extend(Ext.Panel, {
 					cls: 'x-btn-text-icon',
 					iconCls: 'x-deluge-install-plugin',
 					text: _('Install'),
-					handler: this.onInstallPlugin,
+					handler: this.onInstallPluginWindow,
 					scope: this
 				}, '->', {
 					cls: 'x-btn-text-icon',
@@ -288,9 +295,9 @@ Deluge.preferences.Plugins = Ext.extend(Ext.Panel, {
 		delete info;
 	},
 
-	onInstallPlugin: function() {
+	onInstallPluginWindow: function() {
 		if (!this.installWindow) {
-			this.installWindow = new Deluge.preferences.InstallPlugin();
+			this.installWindow = new Deluge.preferences.InstallPluginWindow();
 			this.installWindow.on('pluginadded', this.onPluginInstall, this);
 		}
 		this.installWindow.show();
diff --git a/deluge/ui/web/js/deluge-all/Deluge.Preferences.Proxy.js b/deluge/ui/web/js/deluge-all/Deluge.Preferences.Proxy.js
index 48cd29cc7..dd555e1d5 100644
--- a/deluge/ui/web/js/deluge-all/Deluge.Preferences.Proxy.js
+++ b/deluge/ui/web/js/deluge-all/Deluge.Preferences.Proxy.js
@@ -32,6 +32,11 @@ Copyright:
 */
 
 Ext.namespace('Deluge.preferences');
+
+/**
+ * @class Deluge.preferences.ProxyField
+ * @extends Ext.form.FormSet
+ */
 Deluge.preferences.ProxyField = Ext.extend(Ext.form.FieldSet, {
 
 	constructor: function(config) {
@@ -165,7 +170,10 @@ Deluge.preferences.ProxyField = Ext.extend(Ext.form.FieldSet, {
 	}
 });
 
-
+/**
+ * @class Deluge.preferences.Proxy
+ * @extends Ext.form.FormPanel
+ */
 Deluge.preferences.Proxy = Ext.extend(Ext.form.FormPanel, {
 	constructor: function(config) {
 		config = Ext.apply({
diff --git a/deluge/ui/web/js/deluge-all/Deluge.Preferences.Queue.js b/deluge/ui/web/js/deluge-all/Deluge.Preferences.Queue.js
index 3a8487b29..901b41f70 100644
--- a/deluge/ui/web/js/deluge-all/Deluge.Preferences.Queue.js
+++ b/deluge/ui/web/js/deluge-all/Deluge.Preferences.Queue.js
@@ -32,6 +32,11 @@ Copyright:
 */
 
 Ext.namespace('Deluge.preferences');
+
+/**
+ * @class Deluge.preferences.Queue
+ * @extends Ext.form.FormPanel
+ */
 Deluge.preferences.Queue = Ext.extend(Ext.form.FormPanel, {
 	constructor: function(config) {
 		config = Ext.apply({
diff --git a/deluge/ui/web/js/deluge-all/Deluge.Preferences.js b/deluge/ui/web/js/deluge-all/Deluge.Preferences.js
index 02b30daeb..552454456 100644
--- a/deluge/ui/web/js/deluge-all/Deluge.Preferences.js
+++ b/deluge/ui/web/js/deluge-all/Deluge.Preferences.js
@@ -34,7 +34,11 @@ Copyright:
 
 PreferencesRecord = Ext.data.Record.create([{name:'name', type:'string'}]);
 
-Deluge.PreferencesWindow = Ext.extend(Ext.Window, {
+/**
+ * @class Deluge.preferences.PreferencesWindow
+ * @extends Ext.Window
+ */
+Deluge.preferences.PreferencesWindow = Ext.extend(Ext.Window, {
 
 	/**
 	 * @property {String} currentPage The currently selected page.
@@ -54,7 +58,7 @@ Deluge.PreferencesWindow = Ext.extend(Ext.Window, {
 	resizable: false,
 
 	initComponent: function() {
-		Deluge.PreferencesWindow.superclass.initComponent.call(this);
+		Deluge.preferences.PreferencesWindow.superclass.initComponent.call(this);
 
 		this.categoriesGrid = this.add({
 			xtype: 'grid',
@@ -206,4 +210,4 @@ Deluge.PreferencesWindow = Ext.extend(Ext.Window, {
 		this.hide();
 	}
 });
-deluge.preferences = new Deluge.PreferencesWindow();
+deluge.preferences = new Deluge.preferences.PreferencesWindow();