menu problem / Cool menu

Hi,

I have a BIG problem with my menu. I adapted coolmenu on my page and its
just what I was looking for except for one details which you will see
immediatly when you scroll the menu. The submenus are leaving the page on
the right. I cannot get them to align left!!!
I spent hours looking for a script working cross browser and I thought I
would be able to solve this but I'm hopeless!!!
http://www.val-joanis.com/maquette/
Can anybody help me???

Thanks in advance,

S