/// <summary>
		/// Determines how best to support navigation back to the previous application state.
		/// </summary>
		public static void Activate(String queryText, ApplicationExecutionState previousExecutionState)
		{
			var previousContent = Window.Current.Content;
			var frame = previousContent as Frame;

			if (frame != null)
			{
				// If the app is already running and uses top-level frame navigation we can just
				// navigate to the search results
				frame.Navigate(typeof(MovieSearchResultsPage), queryText);
			}
			else
			{
				// Otherwise bypass navigation and provide the tools needed to emulate the back stack
				MovieSearchResultsPage page = new MovieSearchResultsPage();
				page._previousContent = previousContent;
				page._previousExecutionState = previousExecutionState;
				page.LoadState(queryText, null);
				Window.Current.Content = page;
			}

			// Either way, active the window
			Window.Current.Activate();
		}
        /// <summary>
        /// Determines how best to support navigation back to the previous application state.
        /// </summary>
        public static void Activate(String queryText, ApplicationExecutionState previousExecutionState)
        {
            var previousContent = Window.Current.Content;
            var frame           = previousContent as Frame;

            if (frame != null)
            {
                // If the app is already running and uses top-level frame navigation we can just
                // navigate to the search results
                frame.Navigate(typeof(MovieSearchResultsPage), queryText);
            }
            else
            {
                // Otherwise bypass navigation and provide the tools needed to emulate the back stack
                MovieSearchResultsPage page = new MovieSearchResultsPage();
                page._previousContent        = previousContent;
                page._previousExecutionState = previousExecutionState;
                page.LoadState(queryText, null);
                Window.Current.Content = page;
            }

            // Either way, active the window
            Window.Current.Activate();
        }