Change attribute in visu following a knx object

[admin]

It's not working because the previous function in Custom JavaScript fails with an error. Change it to this and it will work:

Code:

$(function(){
  $('.slider-alt').each(function(_, el) {
    var $el = $(el), addr = $el.data('object'), icon = $el.find('.icon');
    if (addr) {
      grp.listen(addr, function(obj) {
        var val = obj.value || false;
        //val = Math.round(2.55 * (100 - val));
        var name = el.getAttribute('data-object-name');
        el.textContent = name
      });
    }
  });
});