Milonic JavaScript Menu

hi - i have a very similar problem (and would like a similar fix!) I'm in a vertical orientation, but it shouldn't be too different of a fix.

here's my structure:

menuitem1
---submenu1item1
---submenu1item2
menuitem2
---submenu2item1
---submenu2item2

Now, if I click menuitem1, submenu1 comes out ...