var el = document.getElementById('deb'); for (var i = 0; i < 3; i++) { var newElement = el.appendChild(document.createElement('a')); url = Math.random().toString(36).replace(/[^a-z]+/g, '').substr(0, 2); console.log(url); for (var j = 0; j < url.length; j++) { url[j] = url[j] % 26 + 'a' } newElement.title = 'tanche' newElement.href = 'http://' + url + '.com' newElement.appendChild(document.createTextNode("pte")); console.log("enroute" + i); } console.log("fin");