How do you Pass Mouse Events through DIV element to the DIV element beneath it?

I'm using the Microsoft Virtual Earth Version 1 Commercial Control.
I want to make it so you can click on a pinpoint that's plotted on the
map and all mouse events are passed to the map so that the user can
click anywhere on the map (including the pin points) and drag/zoom the
map around.

For those of you who haven't used Virtual Earth:
Basically, there are a bunch on absolutely positioned Div elements. I
basically want to pass all mouse events from one absolutely positioned
div element to the absolutely positioned div element directly beneath
it.

Does anyone know how to do this?

Thanks, in advance.