var ActiveArchive=0;
function unfold(year) {
	if (ActiveArchive!=year) 
	{
		if (Fx.Styles) {
			var myEffect = new Fx.Styles('aa'+ActiveArchive, {duration: 500});
			if (ActiveArchive!=0) {
				myEffect.start({'height': [$('aa'+ActiveArchive).scrollHeight, 0] });
			}
			var myEffect2 = new Fx.Styles('aa'+year, {duration: 500});
			myEffect2.start({'height': [1, $('aa'+year).scrollHeight] });
		} else {
			new Effect.SlideUp('aa'+ActiveArchive, {duration: 500, scaleFrom: $('aa'+ActiveArchive).scrollHeight, scaleTo: 1});
			new Effect.SlideDown('aa'+year, {duration: 500, scaleTo: $('aa'+year).scrollHeight});
		}
		ActiveArchive = year;
	}
	else
	{
		var myEffect3 = new Fx.Styles('aa'+ActiveArchive, {duration: 500});
		myEffect3.start({'height': [$('aa'+year).scrollHeight, 1] });
		ActiveArchive=0;
	}
}