function trackUpdate(track)
{
	var name = track.property('title');
	var artist = track.property('artist');
	var album = track.property('album');

	$('songname').innerHTML = name;
	$('artist').innerHTML = artist;
	$('album').innerHTML = album;

	updateRatingUI(iTunes.rating());
}

function setRating(rating)
{
	updateRatingUI(rating);
	iTunes.setRating(rating);
}

function updateRatingUI(rating)
{
	if(rating > 0){
		$('star1').innerHTML = "★";
	} else {
		$('star1').innerHTML = "☆";
	}

	if(rating > 20){
		$('star2').innerHTML = "★";
	} else {
		$('star2').innerHTML = "☆";
	}

	if(rating > 40){
		$('star3').innerHTML = "★";
	} else {
		$('star3').innerHTML = "☆";
	}

	if(rating > 60){
		$('star4').innerHTML = "★";
	} else {
		$('star4').innerHTML = "☆";
	}

	if(rating > 80){
		$('star5').innerHTML = "★";
	} else {
		$('star5').innerHTML = "☆";
	}
}