 private void browseButton_Click(object sender, EventArgs e)
        {
            // This is the button handler for our HTML reader scenario
            // Set up the properties for the OpenFile dialog.  Restrict to HTM and HTML files
            openFileDialog1.Filter = "HTML Files (*.html) | *.html|HTM Files (*.htm) | *.htm";
            // Prompt the user to choose an HTML file
            openFileDialog1.ShowDialog();
            // Poke the chosen filename into the TextBox on the form
            htmlFileName.Text = this.openFileDialog1.FileName;
            if (htmlFileName.Text != String.Empty)
            {
                // Open the file that the user selected
                this.fs = new FileStream(htmlFileName.Text, FileMode.Open);
                // Load the HTML file stream into the Web Browser control
                webBrowser1.DocumentStream = fs;
                openFileDialog1.Reset();
            }         
