wizard-build-profile checkbox onChange is not firing

As per the issue no. #36, I am also not getting any response on checkbox onChange. I tried adding onChange and as following:

```
$('#dental_type_id_1').change(function () {
    alert($this.value);
 });
```


```
$('input[type=checkbox]').change(function () {
    alert('changed');
});
```

nothing work. Please need help.