var accItem2 = document.getElementsByClassName('accordionItem2'); var accHD = document.getElementsByClassName('accordionItemHeading2'); for (i = 0; i < accHD.length; i++) { accHD[i].addEventListener('click', toggleItem, false); } function toggleItem() { var itemClass = this.parentNode.className; for (i = 0; i < accItem2.length; i++) { accItem2[i].className = 'accordionItem2 close'; } if (itemClass == 'accordionItem2 close') { this.parentNode.className = 'accordionItem2 open'; } }