diff --git a/app/controllers/site_controller.rb b/app/controllers/site_controller.rb
--- a/app/controllers/site_controller.rb
+++ b/app/controllers/site_controller.rb
@@ -17,6 +17,11 @@
     redirect_to :action => 'index'
   end
 
+  def logout
+    reset_session
+    redirect_to :controller => 'main', :action => 'login'
+  end
+
   protected
   def site_admin_authorization
     if session[:site_id]==nil