Hello,
i need to set the Ext:panel ;s Collapsed attribute to false through javascript upon the loading of my ext:panel.
how to do that?

My code is

<ext:Window ID="wndUpload" runat="server" Icon="Images" Title="Graphicmail: Choose an Image"
        Width="800" Height="600" Modal="true" Border="false" Cls="img-chooser-dlg" Show&#111;nload="false">
        <Body>
            <ext:BorderLayout ID="BorderLayout1" runat="server">
                <West Collapsible="True" Split="True" MinWidth="0" MaxWidth="200">
                    <ext:Panel runat="server" ID="FolderDetailPanel" AutoScroll="false" Width="180px">
                        <Body>
                            <div id="basic-accordian">
                            Some data

                        </Body>
                    </ext:Panel>
                </West>
                <Center MinWidth="150" MaxWidth="200" Collapsible="True" AutoHide="true">
                    <ext:Panel ID="Panel1" runat="server" AutoScroll="false" Title="Select Image">
                        <Body>
                                    <div id="basic-accordian2">Some data

                        </Body>
                    </ext:Panel>
                </Center>
                <East Collapsible="true" Split="True" MinWidth="400" MaxWidth="800">
                    <ext:Panel runat="server" ID="ImageDetailPanel" Title="Select/Edit" AutoScroll="false"
                        Width="400px"  Collapsed="true">
                        <Body>
                            <iframe id="Iframe1" name="Iframe1" frameborder="0" scrolling="no" src="Upload.aspx" ></iframe>
                        </Body>
                    </ext:Panel>
                </East>
            </ext:BorderLayout>
        </Body>
        <Buttons>
            <ext:Button runat="server" ID="OkBtn" Text="OK" />
        </Buttons>
    </ext:Window>
regards,
Rizwan Ali