hi
refer below thread
http://www.aspforums.net/Threads/130446/problem-in-using-popup-menu/?s=2#Replies
now I use 2 popup menu in page:
first
<div id="DI1R1">
    <asp:Image ID="Image1" runat="server" CssClass="imgT1" Visible="false"></asp:Image>
</div>
<asp:UpdatePanel ID="Updatepanel1" runat="server">
    <ContentTemplate>
        <div id="Div1">
            <asp:ImageButton ID="ImageButton3" runat="server" CausesValidation="false" CssClass="DPC9_Img2m"
                ImageUrl="~/Image/admin/imgdelete.png" Visible="false"></asp:ImageButton>
            <asp:Label ID="Label1" runat="server"></asp:Label>
            <asp:Panel ID="Panel2" runat="server">
                <asp:ModalPopupExtender DropShadow="true" ID="ModalPopupExtender6" PopupControlID="PnPopup6"
                    runat="server" TargetControlID="BtnPopup6" BackgroundCssClass="Modal" CancelControlID="Imgclose">
                </asp:ModalPopupExtender>
                <asp:Button ID="Button2" OnClick="BtnPopup6_Click" runat="server" Text="انتخاب ویدیو"
                    CssClass="DPC9_Img2" BorderStyle="Solid" BorderWidth="0px" BorderColor="White"
                    CausesValidation="false" />
                <asp:Panel ID="Panel3" runat="server" BackColor="White" CssClass="panel" Style="display: none">
                    <div class="CloseImge">
                        <asp:ImageButton ID="ImageButton4" runat="server" CssClass="closeI" ImageUrl="~/Image/admin/imgdelete.png"
                            CausesValidation="false" />
                    </div>
                    <div class="CloseImge1">
                        <asp:TextBox ID="TextBox2" runat="server" CssClass="txtdesA"></asp:TextBox>
                        <asp:ImageButton ID="ImageButton5" OnClick="BtnUploadL6_Click" runat="server" CausesValidation="false"
                            ImageUrl="~/Image/admin/createGalary.png" CssClass="load" />
                    </div>
                </asp:Panel>
            </asp:Panel>
        </div>
    </ContentTemplate>
</asp:UpdatePanel>
second 
<div id="DI1R1">
    <asp:Image ID="Img5" runat="server" CssClass="imgT1" Visible="false"></asp:Image>
</div>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
    <ContentTemplate>
        <div id="Div1">
            <asp:ImageButton ID="Imgdelete5" runat="server" CausesValidation="false" CssClass="DPC9_Img2m"
                OnClick="btnDeleteImage5_Click" ImageUrl="~/Image/admin/recycle.png" Visible="false">
            </asp:ImageButton>
            <asp:Label ID="Lblimg5" runat="server"></asp:Label>
            <asp:Panel ID="Panel4" runat="server">
                <asp:ModalPopupExtender DropShadow="true" ID="ModalPopupExtender5" PopupControlID="PnPopup5"
                    runat="server" TargetControlID="BtnPopup5" BackgroundCssClass="Modal" CancelControlID="Imgclose5">
                </asp:ModalPopupExtender>
                <asp:Button ID="BtnPopup5" OnClick="BtnPopup5_Click" runat="server" Text="انتخاب تصویر"
                    CssClass="DPC9_Img2" BorderStyle="Solid" BorderWidth="0px" BorderColor="White"
                    CausesValidation="false" />
                <asp:Panel ID="PnPopup5" runat="server" BackColor="White" CssClass="panel" Style="display: none">
                    <div class="CloseImge">
                        <asp:ImageButton ID="Imgclose5" runat="server" CssClass="closeI" ImageUrl="~/Image/admin/imgdelete.png"
                            CausesValidation="false" />
                    </div>
                    <div class="CloseImge1">
                        <asp:FileUpload ID="fup5" runat="server" ToolTip="برای بار گذاری عکس کلیک نمایید."
                            CssClass="fup" />
                        <asp:ImageButton ID="ImageButton11" OnClick="BtnUploadL5_Click" runat="server" CausesValidation="false"
                            ImageUrl="~/Image/admin/createGalary.png" CssClass="load" />
                    </div>
                </asp:Panel>
            </asp:Panel>
        </div>
    </ContentTemplate>
</asp:UpdatePanel>
the first popup menu worked correctly but when I used same code for second popup it doesn't worked I mean when I click on  BtnPopup5 (imagebutton) popup will appear but when I click on ImageButton11 to run behind code it doesn't do any thing I mean it doesn't run behind code and doesn't disappear popup and popup will stay on page...
it just worked when I remove this code:
<asp:UpdatePanel runat="server">
        <ContentTemplate>
when I remove above code from second popup it will worked but disappear popup lately
what should I do know...
how I can use 2 popup in page that both worked like first popup...
best regards
neda