scrolling bar

Hello! i've started to build a course with text in a scrollingbar. i want it to appear when the user click " text" and disappear when the click it to disappear. I have three different layers with different content and i have sound to each layer. Now I want it to be possible to read the text in a scrollingarea instead of in the "note-area" . I put the scrolling area-text in a new layer. but when i click the scrollingareatext the sound disappear from the mainlayer. How do i do to make the small scrollingarea in the bottom of the slide just pou-up without disturbing the main layer-content?  Hope you understand what I*m trying to explain:) Thank You for your advice in advance! //Tanja