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<cms:CMSUpdatePanel ID="pnlUpdateHidden" runat="server">
    <ContentTemplate>       
            
            Put any code in this area and it will not refresh the page on postback
           
    </ContentTemplate>
</cms:CMSUpdatePanel>



<asp:UpdatePanel runat="server" id="UpdatePanel1">
    <ContentTemplate>
            Put any code in this area and it will not refresh the page on postback
    </ContentTemplate>
</asp:UpdatePanel>