--- a/Chronosv2/source/Presentation/ViewModel/NavigationViewModel.cs	Wed Mar 14 18:06:36 2012 +0700
+++ b/Chronosv2/source/Presentation/ViewModel/NavigationViewModel.cs	Thu Mar 15 06:59:15 2012 +0000
@@ -1,28 +1,4 @@
-/*
-The MIT License
-
-Copyright (c) 2009-2010. Carlos Guzmán Álvarez. http://chronoswpf.codeplex.com/
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
-*/
-
-using System;
+using System;
 using Chronos.Presentation.Core.Navigation;
 using Chronos.Presentation.Core.ViewModel;
 using Chronos.Presentation.Core.VirtualDesktops;
@@ -33,7 +9,7 @@
 namespace Chronos.Presentation.ViewModel
 {
     /// <summary>
-    /// base class for navigation based viewmodel iumplementations
+    /// base class for navigation based viewmodel implementations
     /// </summary>
     public abstract class NavigationViewModel 
         : ClosableViewModel, INavigationViewModel
@@ -293,4 +269,4 @@
 
         #endregion
     }
-}
+}
\ No newline at end of file