window.addEvent('domready', function() {
	var div = $('myElement');
	
	div.setStyles({
		display:'block',
		opacity: 0
	});


	//fade in element after 1000ms:
	div.fade.delay(1000, div, 'in');


	//fade out element after 7000ms:
	div.fade.delay(7000, div);
});