Visibility or active/clickable by object status value

[cdebackere]

Is try to active/show and desactivare/hide a command button icon on the basis of the status object value.
Ideally, the element is always visible (adding an On, active icon and an Off, passive/greyed icon), but only can be selected/activated/clicked when value of status object is true

I added JS, but doesn't seem to do the trick

$(function() {
  $('.hidden-by-value').each(function(_, el) {
    var addr = $(el).data('object');
    if (addr) {
      grp.listen(addr, function(obj) {
        var value = obj.value;

        $(el).css('visibility', if value {'visible'} else {'hidden'});
      });
    }
  });
});


Do I overlook something?
is 'object' correct? Or is this the main abject, and not the status object?

Thx