let productReferences = document.getElementsByClassName('info'); let clickedPN = ""; // function returnAltPN (location) {let part = location.href.split("#")[1]; return part}; function appendAltPN () { const li = document.createElement("li"); li.id = clickedPN; const liSpan = document.createElement("SPAN"); liSpan.classList.add("font-bold"); liSpan.innerText = "Alternative Referenz: "; const liPN = document.createTextNode(clickedPN); li.appendChild(liSpan); li.appendChild(liPN); productReferences[0].appendChild(li); }; document.body.addEventListener('click', function (evt) { if (evt.target.className === 'altPN') { clickedPN = evt.target.innerText; if (!document.getElementById(clickedPN)) { appendAltPN (); } } }, false);