Problem of ModalPopup

How can I make ModalPopup control work properly in Master /content page scenario, which master page contains more than one content place holder? here's my code:

<%

@dotnet.itags.org.PageLanguage="VB"MasterPageFile="~/MasterPage.master"AutoEventWireup="false"CodeFile="Default2.aspx.vb"Inherits="Default2"title="Untitled Page" %>

<%

@dotnet.itags.org.RegisterAssembly="AtlasControlToolkit"Namespace="AtlasControlToolkit"TagPrefix="atlasToolkit" %>

<

asp:ContentID="Content1"ContentPlaceHolderID="NavigationLinksPane"Runat="Server">

</

asp:Content>

<

asp:ContentID="Content2"ContentPlaceHolderID="Pane2"Runat="Server">

</

asp:Content>

<

asp:ContentID="Content3"ContentPlaceHolderID="Pane3"Runat="Server"><atlas:ScriptManagerID="Scriptmanager1"runat="server"></atlas:ScriptManager><scripttype="text/javascript">function onOk() {

alert(

event.srcElement.Name);

}

</script><asp:PanelID="GlobalChangeQuerySourcePopupPanel"runat="server"CssClass="modalPopup"style="display:none"><p><asp:LabelID="GlobalChangeQuerySourcePopupLabel"runat="server"Text="Please select a item from list"></asp:Label></p><br/><asp:ListBoxID="GlobalChangeQuerySourceListBox"runat="server"></asp:ListBox><br/><center><asp:ButtonID="OkButton"runat="server"Text="OK"></asp:Button><asp:ButtonID="CancelButton"runat="server"Text="Cancel"></asp:Button></center></asp:Panel><atlasToolkit:ModalPopupExtenderID="ModalPopupExtender"runat="server"><atlasToolkit:ModalPopupPropertiesTargetControlID="GlobalChangeQuerySourceButton"PopupControlID="GlobalChangeQuerySourcePopupPanel"BackgroundCssClass="modalBackground"DropShadow="true"OkControlID="OkButton"OnOkScript="onOk()"CancelControlID="CancelButton"/></atlasToolkit:ModalPopupExtender>

<

asp:ButtonID="GlobalChangeQuerySourceButton"Text="..."runat="server"/>

</

asp:Content>

<

asp:ContentID="Content4"ContentPlaceHolderID="PaneJS"Runat="Server">

</

asp:Content>

I've tested out that it works very well if there is only one content place holder in my master page.

Any help will be appreciated, Thanks very much in advance.

Tony

Just want to bring this one up to get some attention from you guys

Thanks a lot if you guys can help me out.

Tony

I am having the same problem . See the last few entries on threadhttp://forums.asp.net/2/1364885/ShowThread.aspx