Problem with CKEditor in an update panel

Hi there,

I am experiencing odd behavior on a page I am trying to use CKEditor on.
What I want to achieve is an Itinerary description is initially rendered (within a DIV) to a normal label. However if the user elects to edit this information, I then hide the original DIV and display the CKEDitor.
(This bit works)
The problem occurs when I try to save the changes, and hide the div in which the editor sits. I basically won't hide ever again. This all works fine if the controls are not in an UpdatePanel, but I really don't want to post back the entire page when the user saves their edited itinerary.

Does anyone have any suggestions, please?

Here is the code (hopefully I have provided enough):

1) First up is the declaration of the two divs (one for display, one for editing), these are in a HTML table (for brevity, I am only posting up the relevant parts of the page):

        <tr>
                <td colspan="6">
                    <div runat="server" style="color:#000066;" id="divTourItinerary"><asp:ImageButton runat="server" id="editItineraryIMG" ImageUrl="~/images/edit.gif" AlternateText="Edit Itinerary" onclientclick="return showEditItineraryControl()" /><br />
                    <asp:Label ID="itineraryLBL" runat="server" />
                    
                    </div>
                </td>
            </tr>
            <tr>    
                <td colspan="6">
                    <div id="divEditTourItinerary" style="color:#000066;" runat="server">
                        <textarea id="txtTourItinerary" runat="server" rows="5"></textarea>
                        <asp:ImageButton runat="server" id="saveItineraryIMG" ImageUrl="~/images/save.gif" AlternateText="Save Itinerary" onclientclick="hideEditItineraryControl()" OnClick="SaveUpdatedItinerary" AutoPostback="true" CausesValidation="false"/>
                    </div>   
                </td>
            </tr>

2) This is the script at the end of the page, where the javascript to hide/show the div's resides:

    <script language="javascript" type="text/javascript">

        $(document).ready(function() {
            $('#<%= divEditTourItinerary.ClientID %>').css('display', 'none');
        });

        function showEditItineraryControl() {
            $('#<%= updatedItineraryHID.ClientID %>').val("");
            $('#<%= divEditTourItinerary.ClientID %>').css('display', 'block');
            $('#<%= divTourItinerary.ClientID %>').css('display', 'none');
            return false;
        }

        function hideEditItineraryControl() {
            $('#<%= updatedItineraryHID.ClientID %>').val(CKEDITOR.instances.<%= txtTourItinerary.ClientID %>.getData());
            CKEDITOR.instances.<%= txtTourItinerary.ClientID %>.destroy();
            $('#<%= divEditTourItinerary.ClientID %>').css('display', 'none');
            $('#<%= divTourItinerary.ClientID %>').css('display', 'block');
        }
        
        function applicationLoadHandler() {
            try
            {
                CKEDITOR.replace(document.getElementById("<%= txtTourItinerary.ClientID %>"),
                    { customConfig: '/ckeditor/myconfig.js' });
            }
            catch(e){}
        }
        
        Sys.Application.add_load(applicationLoadHandler);
    </script>