currentFeature = 'hiddenBio';

function showFeature(whichFeature) {
	pound = '#';
	fadedFeature = pound.concat(whichFeature);
	pwndFeature = pound.concat(currentFeature);
	$(pwndFeature).fadeOut(500, function() {
		$(fadedFeature).fadeIn(500);	
	});
	currentFeature = whichFeature;
}

/* example showFeature('featuresTwo') */