Setting flash image to 'background'

[gb]

Hi all

My website has 2 columns and 2 rows.

In the left-hand column, I have a navigation menu, of which, some open a sub
menu.

One of the sub menus opens pages containing flash movies. When the page is
open and the cursor is moved back to the menu, the sub menus open behind the
movie.

Does anyone know how I can get the sub menu to appear at the front of the
movie?

Thanks for your kind help

gb