var radios = document.querySelectorAll('.payment-tab-trigger > input');

	for (var i = 0; i < radios.length; i++) {
		radios[i].addEventListener('change', expandAccordion);
	}

	function expandAccordion (event) {
	  var allTabs = document.querySelectorAll('.payment-tab');
	  for (var i = 0; i < allTabs.length; i++) {
	    allTabs[i].classList.remove('payment-tab-active');
	  }
	  event.target.parentNode.parentNode.classList.add('payment-tab-active');
	}