Vertical Menu on the left side

Hi Ced
I hope I don't ask a question which is already answered.
I have a homepage from a customer with vertical menu Left and Submenus. the Submenus will open at the right side of the menu.
But I want to have it on the same left field and it should open there but then the menu should give some more place, that you can see all the other menupoints. Otherwise the other menupoints are hidden from the submenus Just like an accordeon.
Do you understand what I mean?
the homepage is homoeopathie-sarmenstorf.ch/

I think you can help just like all the time;-)
Regards
Claudia

Hi
if you want an accordion menu, then you can use Accordeon Menu CK
www.joomlack.fr/en/joomla-extensions/accordeonmenu-ck

CEd