protected void Button1_Click(object sender, EventArgs e)
        {
            string toConvert = Server.HtmlEncode(txtInput.Text);

            txtOutput.Text        = recoder.ExpandTwoLetterWithSpaces(toConvert);
            outputSection.Visible = true;

            txtJapanese.Text      = recoder.ExpandJapanese(toConvert);
            txtChinese.Text       = recoder.ExpandChinese(toConvert);
            txtUnicode.Text       = recoder.ExpandUnicode(toConvert);
            outputSection.Visible = true;
        }