This is probably considered a newbie question, but hey, I'm a newbie

So I'm using dreamweaver and I wanna add some audio to my webpage. I want it to automatically play a song when it loads, and then have the user able to turn it off by clicking a button. You can see the "on/off" buttons at the upper right hand corner of my webpage at

Also, I want the rollover links on the nav bars to play a sound when they are rolled over.

Can someone please help me out with this?