How to show modal ASPxPopupControl

Hi there,

I'm trying  to create a modal loading panel that disables all background page functionality until a page redirection occurs. Like a "please wait while something happens" message.

I'm familiar with using the ASPxLoading Panel on components.

ASPx
<dxe:ASPxLoadingPanel ID="ASPxLoadingPanel" runat="server" ClientInstanceName="loadingPanel" Modal="True" Visible="True" ></dxe:ASPxLoadingPanel>  

And then I use it as:

ASPx
loadingPanel.ShowInElementByID(someTextBox.name);  

I'd like to do this sort of thing, but have it screen centered and as a modal that wouldn't allow the user to fiddle about with other stuff.
How can I accomplish this?

EDIT
After doing some thinking, I've rather decided to go for displaying a custom ASPxPopupControl instead:

ASPx
<dxpc:ASPxPopupControl runat="server" ClientInstanceName="searchPopup"  
                               HeaderText="Quick Search" Modal="True" PopupHorizontalAlign="WindowCenter"  
                               PopupVerticalAlign="WindowCenter" AllowDragging="false" Width="250px" Height="85px">  
        <ContentCollection>  
            <dxpc:PopupControlContentControl ID="PopupControlContentControl1" runat="server">  
              <table align="center">  
                <tr align="center">  
                  <td align="center">  
                    <dxe:ASPxLabel runat="server" Text="Searching..."/>  
                  </td>  
                </tr>  
              </table>  
            </dxpc:PopupControlContentControl>  
        </ContentCollection>  
        <HeaderStyle VerticalAlign="Middle" />  
        <HeaderImage Url="~/Images/Icons/view.png" />  
</dxpc:ASPxPopupControl>  

So far this works well. It is displayed in the center of the screen, has a nice title, and I can place all sorts of components within it.

I do have a few problems with this component though:

1. It has a close button by default.
2. Clicking anywhere next to this ASPxPopupControl causes the dialog to be automatically closed, hence it's not modal at all even though its Modal property is set to true.

How can I
a) Hide this default close button or disable it?
and
b) Ignore any clicks the user makes outside of this ASPxPopupControl to prevent it from automatically closing?

Thanks,
JP