使用ASP.NET Forms身份验证,如何让图像显示在登录屏幕上？

<asp:Login ID="Login1" runat="server" OnAuthenticate="Login1_Authenticate">
   <LayoutTemplate>
        <asp:Image ID="Image1" runat="server" ImageUrl="~/path/to/image.jpg" />
       <table cellpadding="1" cellspacing="0" style="border-collapse:collapse;">
            <tr>
                <td>
                    <asp:Label ID="UserNameLabel" runat="server" AssociatedControlID="UserName">用户名:</asp:Label>
                </td>
                <td>
                    <asp:TextBox ID="UserName" runat="server"></asp:TextBox>
                </td>
            </tr>
            <tr>
                <td>
                    <asp:Label ID="PasswordLabel" runat="server" AssociatedControlID="Password">密码:</asp:Label>
                </td>
                <td>
                    <asp:TextBox ID="Password" runat="server" TextMode="Password"></asp:TextBox>
                </td>
            </tr>
            <tr>
                <td colspan="2">
                    <asp:CheckBox ID="RememberMe" runat="server" Text="记住我" />
                </td>
            </tr>
            <tr>
                <td align="center" colspan="2" style="color:Red;">
                    <asp:Literal ID="FailureText" runat="server" EnableViewState="False"></asp:Literal>
                </td>
            </tr>
            <tr>
                <td align="right" colspan="2">
                    <asp:Button ID="LoginButton" runat="server" CommandName="Login" Text="登录" ValidationGroup="Login1" />
                </td>
            </tr>
        </table>
    </LayoutTemplate>
</asp:Login>