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

	$('capacity-link').addEvent('click', function(e){

		e.stop();

		$('flow').setStyle('display','none');

		$('capacity').setStyle('display','block');

		$('flow-link').removeProperty('class');

		$('capacity-link').setProperty('class','active');

	});

	$('flow-link').addEvent('click', function(e){

		e.stop();

		$('capacity').setStyle('display','none');

		$('flow').setStyle('display','block');

		$('capacity-link').removeProperty('class');

		$('flow-link').setProperty('class','active');

	});

});