YUI().use('node', 'transition', 'event', 'event-delegate', function(Y) {
	// vars to pass in via options object
	var minSegHght = 32;	// minimum height of a segment
	//

	var accordion = Y.one('.accordion'),
		contHght = accordion.get('offsetHeight'),
		segs = Y.all('.segment'),
		numSeg = segs.size(),
		spacing = Y.one('.segment').getStyle('marginBottom').replace(/px/,''),
		normSegHght = (contHght - ((numSeg - 1) * spacing)) / numSeg,
		maxSegHght = (contHght - ((numSeg - 1) * spacing)) - ((numSeg - 1) * minSegHght);

	function selectSegment(e) {
		segs.each(function(node) {
			if(node === e.currentTarget) {
				node.transition({height: maxSegHght + 'px'});
			} else {
				node.transition({height: minSegHght + 'px'});
			}
		});
	}

	function deselectSegment(e) {
		segs.each(function(node) {
			node.transition({height: normSegHght + 'px'});
		});
	}

	accordion.delegate('mouseover', selectSegment, '.segment');
	accordion.on('mouseout', deselectSegment);
});