2advanced submenu scroll?

[COLOR=black][FONT=Arial]I’m trying to create a menu that looks like the new 2advanced submenu, i mean you can scroll the sublinks under a mask, I’ve been trying to do this with normal scrolling way but noting is working.[/FONT][/COLOR]
[COLOR=black][FONT=Arial]The problem is that i use a dragger(button or movie clip), the dragger is controlled by onRollOver, and here is the problem, when i rollover the Dragger, it over rides the buttons under the mask in the submenu.[/FONT][/COLOR]
[COLOR=black][FONT=Arial]any help would be great.[/FONT][/COLOR]
[COLOR=black][FONT=Arial]attached is a scroller i got from here, with my editing.[/FONT][/COLOR]
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