update panel progress in ajax.

Question

<asp:UpdateProgress ID="updateprogress1" runat="server" DisplayAfter="0" AssociatedUpdatePanelID="updatepanel1">
                   <ProgressTemplate>
                    <asp:Panel ID="pnlUpdateProgress" runat="server" CssClass="updateProgress">
                    <img src="Images/ajax-loader.gif" class="loadingImage" alt="Processing" />
                   </asp:Panel>
                  </ProgressTemplate>
                </asp:UpdateProgress>


with three update panel
<asp:UpdatePanel ID = "updatepanel1" runat ="server">
                    <ContentTemplate>
</ContentTemplate>
</asp:updatepanel>
<asp:UpdatePanel ID = "updatepanel2" runat ="server">
                    <ContentTemplate>
</ContentTemplate>
</asp:updatepanel>
<asp:UpdatePanel ID = "updatepanel3" runat ="server">
                    <ContentTemplate>
</ContentTemplate>
</asp:updatepanel>

i want to use only one updateprogress for all update panels, but when I try, I get an error. Is this possible?