ActionScript 3.0 :: If First Scroll Button Clicked Disable Second One?

I have created on scroll box w/two scroll bars; one on each side of the scroll box (don't ask me why, its necessary). I have both scroll bars working; each scroll bar button/bar moves the text in the .y dir. The interesting thing is that when I use the right scroll bar it works until I try to use the left scroll bar. When I use the left scroll bar it only moves the text half the distance, and if I go back to the right scroll bar, it does the same thing. Like the math has somehow intersect and causes each of the Bar/Buttons to go only half the distance. What I think I need to do is add a conditional statement that says that if scrollbarbutton01 is click, scrollbarbutton02 is disabled (null or removeEventListener) and visa versa.