How do you make it so you can only have one audio-file playing?

[Sphotof]

I'm making a soundboard/Ishkur guide styled-flash and need to make it so you can only have ONE sound playing. If you click on a different button it quits the previous audio. And while I have your attention, I also need to know how to make it so clicking on one of the buttons makes text appear on the bottom right, and clicking on another gets rid of the previous text. To get an idea of what I mean, look at this :
http://techno.org/electronic-music-guide/

[fruitbeard]

Hi,

A very basic way can be like this

var MySound = new Sound();
Button1.onPress = function()
{
    MySound.stop();
    MySound.loadSound("Song1.mp3",true);
    MyText.text = "Song 1 playing";
};
Button2.onPress = function()
{
    MySound.stop();
    MySound.loadSound("Song2.mp3",true);
    MyText.text = "Song 2 playing";
};
Button3.onPress = function()
{
    MySound.stop();
    MyText.text = "No song playing";
}; 

having the songs in the same directory as the swf

or a similar simple way

NoSong = "No song playing";
Song1 = "Song1.mp3";
Song2 = "Song2.mp3";

var MySound = new Sound();
Button1.onPress = function()
{
    MySound.stop();
    MySound.loadSound(Song1,true);
    MyText.text = Song1;
};
Button2.onPress = function()
{
    MySound.stop();
    MySound.loadSound(Song2,true);
    MyText.text = Song2;
};
Button3.onPress = function()
{
    MySound.stop();
    MyText.text = NoSong;
};