UpdatePanel problem using in FCKeditor.

<asp:UpdatePanel ID="updedit" UpdateMode="Conditional" runat="server">
<ContentTemplate>
<div>
<asp:Menu ID="Menu1" runat="server" BackColor="#F7F6F3" DynamicHorizontalOffset="2"
Font-Names="Arial" Font-Size="8" ForeColor="#F36523" StaticSubMenuIndent="10px">
<StaticMenuItemStyle HorizontalPadding="5px" VerticalPadding="2px" />
<DynamicHoverStyle BackColor="#F36523" ForeColor="White" />
<DynamicMenuStyle BackColor="#F7F6F3" />
<StaticSelectedStyle BackColor="#F7F6F3" />
<DynamicSelectedStyle BackColor="#ffffff" />
<DynamicMenuItemStyle HorizontalPadding="5px" VerticalPadding="2px" />
<StaticHoverStyle BackColor="#F36523" ForeColor="White" />
</asp:Menu>
</div>
</ContentTemplate>
<Triggers>
<%--<asp:AsyncPostBackTrigger ControlID="Menu1" EventName="MenuItemClick" />--%>
<%--<asp:PostBackTrigger ControlID="Menu1" />--%>
</Triggers>
</asp:UpdatePanel>


<asp:UpdatePanel ID="updedit1" UpdateMode="Conditional" runat="server">
<ContentTemplate>
<div>
<FCKeditorV2:FCKeditor ID="FCKeditor1" BasePath="FCKeditor/" Height="600px" runat="server">
</FCKeditorV2:FCKeditor>
</div>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Menu1" EventName="MenuItemClick" />
<asp:PostBackTrigger ControlID="FCKeditor1" />
</Triggers>
</asp:UpdatePanel>





Protected Sub Menu1_MenuItemClick(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.MenuEventArgs) Handles Menu1.MenuItemClick
If e.Item.Value <> "" Then
Dim k As String
k = "<_" & e.Item.Value.ToString & "_>" + "</body>"
FCKeditor1.Value = FCKeditor1.Value.Replace("</body>", k)
End If
End Sub



UpdatePanel problem using in FCKeditor.
Menu1 clicked then, FCKeditor was blinked.
i used in seperate updatepanel and using in triger. but this doesn't work.
whats the problem that the UpdatePanel and FCKeditor??
help please...