Parent dropdown menu

I have tried several plugins and coding for example
http://www.seoadsensethemes.com/wordpress-multi-level-drop-down-menu-using-jquery/

But I just can not get this to work wthe way I want.
How to make the menu a dropdown
Basically, I would like to have all pages that have NO PARENT in menu bar, and any page that has a PARENT to be a dropdown.

example,
page NEWS has no parent, it is in the menu
pages
NEWS1 NEWS2 NEWS3 use NEWS as a parent, so they become a dropdown?