Flash Sounds

Hi guys,
Bit of a self confessed Flash dumskee here.
I am trying to add an interactive tutorial content section to our website.
I’ve managed to build a bit of a frame in Flash that skips from label to label, playing a seperate sound in each label. The problem is that the sound from the previous area continues to play so I am getting overlap.

Is it possible to have the sound clips end when you leave the frame?

Thanks in advance.