<%@ Page Language=VB Debug=true %>Using Panel Controls to Control Code Flow id="PanelNameEmail" runat="server" visible="True"> Enter your name: id="txtName" runat=server /> Enter your email address: id="txtEmail" runat=server /> id="butNameEmail" text="OK" onclick="PanelNameEmail_Click" runat="server" /> id="PanelPhoneNumbers" runat="server" visible="False"> Enter your Phone Number: id="txtPhoneNumber" runat=server /> Enter your Fax Number: id="txtFaxNumber" runat=server /> id="butPhoneNumbers" text="OK" onclick="PanelPhoneNumbers_Click" runat="server" /> id="PanelSummary" runat="server" visible="False"> id="lblSummary" runat=server /> id="butSummary" text="Change Values" onclick="PanelSummary_Click" runat="server" />