var x = 1;
var t;

function darken(i){
	if(x > .5){
		x = x - .05;
		i.style.opacity = x;
		i.style.filter = 'Alpha(opacity=' + x * 100 + ')';
		t = setTimeout('darken(i)', 50);
	} else lighten(i);
}

function lighten(i){
	if(x < 1){
		x = x + .05;
		i.style.opacity = x;
		i.style.filter = 'Alpha(opacity=' + x * 100 + ')';
		t = setTimeout('lighten(i)', 50);
	} else darken(i);
}

function out(i){
	clearTimeout(t);
	x = 1;
	i.style.opacity = 1;
	i.style.filter = 'Alpha(opacity=100)';
}

function playSong(){
	audio = document.createElement('audio');
	song = document.getElementsByTagName('select')[0].options[Math.ceil(Math.random()*5)];
	song.setAttribute('selected', 'selected');
	audio.src = song.text.replace(/ /g, '-') + '.ogg';
	audio.setAttribute('onended', 'this.currentTime=' + song.value);
	audio.play();
}

function nextSong(song){
	audio.src = song.text.replace(/ /g, '-') + '.ogg';
	audio.setAttribute('onended','this.currentTime=' + song.value);
	audio.load();
	audio.play();
}