function cMix()
{
	this.playlists = [];
	
	this.faderPosition;
	this.fadeSpeed;
	this.fadeIncrement;
	this.fadeDirection;
	
	this.currentBPM;
}

function cPlaylist()
{
	this.tracks = [];
	this.volume;
	this.currentTrack;
	this.isPlaying;
}

function cTrack()
{
	this.name;
	this.id;
	this.sequence;
	
	this.thumbnailUrl;
	this.description;
	
	this.volume;
	this.cuePoint;
	this.length;
}

//serialiser : http://blog.stchur.com/2007/04/06/serializing-objects-in-javascript/