Customize a vertical menu

Hi
I need to make a vertical menu bar where the sub menu that flies out on the right always starts at the top rather than next to its parent. I used this script
http://www.javascriptkit.com/script/script2/verticalmenu.shtml

at the moment lists look like this (bold is selected option)

1
2 1
3 2
4 3 1

what i want is this to happen

1 1 1
2 2
3 3
4

Alternatively, does anyone know how to get the vertical spry menubar from DW to work in Safari?
To get an idea of what I want, see this working version (not working in Safari though) in Firefox

http://www.photoshopcourselondon.com/file%20open%202.html

thanks

mikael