[CLOSED] LoadMask on Panel without Loader

[Patrick_G]

How do I add a load mask to a panel if I am not using a Loader? If I add a loader to a panel like this:

                                    <Loader runat="server">
                                        <LoadMask ShowMask="true" Msg="Please Wait..."></LoadMask>
                                    </Loader>

... the panel fails to load. Somewhere in the Ext code if fails in a urlAppend method. I have seen examples of people adding them on the BeforeShow method via javascript, but I can't seem to get these to work.

We are no longer using Portals, but with Portals I could use the following javascript

portal.el.mask('Please Wait...');

but I am not sure what the code would be for a Panel.

Thank you for your help