Music for flash web page

Hi,

I am building a flash site that consists of 5 pages. I would like to have an on/off button for music to play.

can someone point me in the right direction on how to do this. I have made something off the top of my head, but whenever I go from page to page, the music begins again (so i end up playing the track 5 times instead of it smoothly looping)

just an easy online tutorial would be fine.

Thanks!