gistfile1.js

function fadeOut(id) {
	var elem = document.getElementById(id);
	var colorTo = elem.style.backgroundColor;
	var attribs = { color: {to: colorTo} };
	var anim = new YAHOO.util.ColorAnim(id, attribs);
	anim.onComplete.subscribe(function() {
		elem.style.display = 'none';
	});
	anim.animate();
}