Hide/show panel onClick on item in radiobuttonlist

Hello.

I have a radiobuttonlist with two items.  if I check the last item I want to hide the panel with the label and textbox.  If I press the first item I want to show them again.
How can I do that.

<asp:RadioButtonList ID="rbl1" runat="server">
                <asp:ListItem Selected="True" Text="SomeText" Value="Value1">
                                       
                </asp:ListItem>
                <asp:ListItem Selected="False" Text="SomeOtherTex" Value="Value2" OnClick="pnlEntryMethod.Visible=False">
                   
                </asp:ListItem>
            </asp:RadioButtonList>
            <asp:Panel ID="pnlMyPanel" runat="server">
                <asp:Label ID="lblMyLabel" runat="server" Text="SomeText"></asp:Label>
                <asp:TextBox ID="tbSomeTextBox" runat="server"></asp:TextBox>
                </asp:Panel>


            </asp:Panel>