Depth of a swf file in html document: conflict with java menu

Hi everyone,

I have created java menus using fireworks and they are just upside (upside:Y direction) a swf animation but the drop down menus are displayed below the swf movie when the mouse is over a menu item.
(below means below in Z-Direction not Y)

Is there a solution for that?
Is there such a concept like the depth of an object in html doc?

thanks a lot…