It is very difficult to get jQuery or other javascript to work correctly inside UpdatePanel because after the updatepanel postback the widgets are no longer wired up.

So things like:

<mp:DatePickerControl ID="dpBeginDate" runat="server" ShowTime="True" CssClass="forminput"></mp:DatePickerControl>

and

<mpe:EditorControl ID="edContent" runat="server"></mpe:EditorControl>

will not work inside UpdatePanel

inside UpdatePanel you can use AjaxControlToolkit datepicker and WYSIWYG like this:

<asp:textbox runat="server" id="txtEventDate" />
<ajaxToolkit:CalendarExtender ID="ceEventDate" runat="server" TargetControlID="txtEventDate" />

and

<portal:AjaxEditor ID="editor1" runat="server" Height="250" />

Hope it helps,

Joe

ps please do not report problems you encounter with custom development as bugs, this is not a bug in mojoPortal, this question should have been asked in the developer forum not reported as a bug