Display different html pages according to date and time of the month in a webview

See more:

C#

XAML

Windows-Phone-7

Hi I have different html pages in my app that i will like to view locally in my app the code below can only view single html page but what i want is To display different
html pages according to date of the month in a webview
This is my code below
xaml

<!--ContentPanel - place additional content here-->
        <grid x:name="ContentPanel" grid.row="1" margin="12,0,12,0" xmlns:x="#unknown">
            <phone:webbrowser horizontalalignment="Left" margin="20,50,0,0" name="webBrowser1" verticalalignment="Top" height="500" width="430" xmlns:phone="#unknown" />
        </grid>

xaml.cs

public partial class MainPage : PhoneApplicationPage
    {
        private List<string> htmls;

        private int CurrentIndex = 0;

        private int TotalCount = 0;
        // Constructor
        public MainPage()
        {
            InitializeComponent();

            // Sample code to localize the ApplicationBar
            //BuildLocalizedApplicationBar();

            this.Loaded += MainPage_Loaded;
        }

        private void MainPage_Loaded(object sender, RoutedEventArgs e)
        {
            htmls = new List<string>() { "/Bible/hymnpage1.html", "/Bible/hymnpage2.html", "/Bible/hymnpage3.html", "/Bible/1_1_2016.html" };
            TotalCount = htmls.Count;
            if (TotalCount != 0)

            {
                webBrowser1.Navigate(new Uri(htmls[CurrentIndex], UriKind.Relative));
            }

        }

        private void Previous_Click(object sender, EventArgs e)
        {
            if (CurrentIndex != 0)
            {
                CurrentIndex--;
            }

            webBrowser1.Navigate(new Uri(htmls[CurrentIndex], UriKind.Relative));
        }

        private void Next_Click(object sender, EventArgs e)
        {
            if (CurrentIndex != TotalCount - 1)
            {
                CurrentIndex++;
            }

            webBrowser1.Navigate(new Uri(htmls[CurrentIndex], UriKind.Relative));
        }

Kindly help

What I have tried:

Have tried other developer forums there was no direct solution given