$(function () { // Display helptext to content box according to dns-record type selected $("select[name='dns_type']").on('change', function () { var selVal = $(this).val(); $.ajax({ url: "lib/ajax.php?action=loadLanguageString", type: "POST", dataType: "json", data: { langid: 'dnseditor.notes.' + selVal }, success: function (data) { $("#dns_content").next().html(data); }, error: function (request, status, error) { console.log(request, status, error) } }); }); });