window.addEvent('domready', function() {

	//settings
	//var el = $('coupon');
	var height_closed = 27;
//	var height_open = 144;
	var height_open = 128;
	var state = 'closed';
	//el.setStyle('height', height_closed);
	$('coupon').setStyle('height', height_closed);
	
	var couponFx = $('coupon').effect('height', {
		duration: 500,
		transition: Fx.Transitions.Quart.easeInOut
	});

	//add the click toggle
	$('coupon').addEvent('click', function() {
		state = (state == 'closed' ? 'open' : 'closed');
		couponFx.start((state == 'closed' ? height_closed : height_open));
	});
});