diff -r f7f0f3bafbb7 -r a1c06df9928d GUI/UserRadioGroup.cs
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GUI/UserRadioGroup.cs	Sun May 22 19:15:27 2011 +0000
@@ -0,0 +1,97 @@
+/*
+  
+  Version: MPL 1.1/GPL 2.0/LGPL 2.1
+
+  The contents of this file are subject to the Mozilla Public License Version
+  1.1 (the "License"); you may not use this file except in compliance with
+  the License. You may obtain a copy of the License at
+ 
+  http://www.mozilla.org/MPL/
+
+  Software distributed under the License is distributed on an "AS IS" basis,
+  WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+  for the specific language governing rights and limitations under the License.
+
+  The Original Code is the Open Hardware Monitor code.
+
+  The Initial Developer of the Original Code is 
+  Michael Möller <m.moeller@gmx.ch>.
+  Portions created by the Initial Developer are Copyright (C) 20011
+  the Initial Developer. All Rights Reserved.
+
+  Contributor(s):
+
+  Alternatively, the contents of this file may be used under the terms of
+  either the GNU General Public License Version 2 or later (the "GPL"), or
+  the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+  in which case the provisions of the GPL or the LGPL are applicable instead
+  of those above. If you wish to allow use of your version of this file only
+  under the terms of either the GPL or the LGPL, and not to allow others to
+  use your version of this file under the terms of the MPL, indicate your
+  decision by deleting the provisions above and replace them with the notice
+  and other provisions required by the GPL or the LGPL. If you do not delete
+  the provisions above, a recipient may use your version of this file under
+  the terms of any one of the MPL, the GPL or the LGPL.
+ 
+*/
+
+using System;
+using System.Collections.Generic;
+using System.Windows.Forms;
+using OpenHardwareMonitor.Utilities;
+
+namespace OpenHardwareMonitor.GUI {
+  public class UserRadioGroup {
+    private string name;
+    private int value;
+    private MenuItem[] menuItems;
+    private event EventHandler changed;
+    private PersistentSettings settings;
+
+    public UserRadioGroup(string name, int value,
+      MenuItem[] menuItems, PersistentSettings settings) {
+      this.settings = settings;
+      this.name = name;
+      if (name != null)
+        this.value = settings.GetValue(name, value);
+      else
+        this.value = value;
+      this.menuItems = menuItems;
+      this.value = Math.Max(Math.Min(this.value, menuItems.Length - 1), 0);
+
+      for (int i = 0; i < this.menuItems.Length; i++) {
+        this.menuItems[i].Checked = i == this.value;
+        int index = i;
+        this.menuItems[i].Click += delegate(object sender, EventArgs e) {
+          this.Value = index;
+        };
+      }      
+    }
+
+    public int Value {
+      get { return value; }
+      set {
+        if (this.value != value) {
+          this.value = value;
+          if (this.name != null)
+            settings.SetValue(name, value);
+          for (int i = 0; i < this.menuItems.Length; i++) 
+            this.menuItems[i].Checked = i == value;
+          if (changed != null)
+            changed(this, null);
+        }
+      }
+    }
+
+    public event EventHandler Changed {
+      add {
+        changed += value;
+        if (changed != null)
+          changed(this, null);
+      }
+      remove {
+        changed -= value;
+      }
+    }
+  }
+}