Элементы управления и использование JavaScript

<form id="form1" runat="server">
    <div>
        <asp:FileUpload ID="FileUpload1" runat="server" /><br>
        <asp:Button ID="UploadButton" runat="server"
            Text="Button" OnClick="UploadButton_Click" /><br><br>
            <asp:Label ID="Message" runat="server" Text="Label" 
BackColor="#FFC0C0" Width="354px"></asp:Label>
    </div>
    </form>

protected void UploadButton_Click(object sender, EventArgs e)
    {
        if (this.FileUpload1.HasFile)
        {
            try
            {
                FileUpload1.SaveAs("c:\\Uploads\\" + 
FileUpload1.FileName);
                Message.Text = "Имя файла: " +
                FileUpload1.PostedFile.FileName + "<br>" +
                FileUpload1.PostedFile.ContentLength + " кб<br>" +
                "Content type: " +
                FileUpload1.PostedFile.ContentType;
            }
            catch (Exception ex) 
            {
                Message.Text = "Ошибка: " + ex.Message.ToString();
            }        
        }
    }

<asp:RadioButtonList ID="RadioButtonList1" runat="server" 
OnSelectedIndexChanged="RadioButtonList1_SelectedIndexChanged" 
AutoPostBack="True">
    <asp:ListItem Value="English"></asp:ListItem>
    <asp:ListItem Value="German"></asp:ListItem>
    <asp:ListItem Value="Russian"></asp:ListItem>
    </asp:RadioButtonList>
    <asp:MultiView ID="MultiView1" runat="server">
        <asp:View ID="View1" runat="server" >
        <b>We are glad to meet you on our yellow pages.</b>
        <br />
        <i>Information about over 8800 products and services.</i>
        </asp:View>
        <asp:View ID="View2" runat="server">
       <b>Wir sind erfreut Sie auf unseren Gelb-Seiten zu emp-
fangen!</b>
        <br />
        <i>Wir stellen zur Eur VerfЯgung Informationen von Яeber 
8800 Waren und Leistungen.</i>
        </asp:View>
        <asp:View ID="View3" runat="server">
        <b>Мы рады приветствовать вас на нашем сайте.</b>
        <br />
        <i>Предоставляем информацию о свыше чем 8800 товарах и 
услугах!</i>
        </asp:View>
    </asp:MultiView>

protected void RadioButtonList1_SelectedIndexChanged(object 
sender, EventArgs e)
    {
        MultiView1.ActiveViewIndex = 
RadioButtonList1.SelectedIndex;
    }