I have two sliding bars and I want to get the value the user sets them to and do some maths on it. var days and var total are my attempts to do this. I was taking it that the UI slider stores its values as stings and not integers. But both my attempts below, then use either just return a NaN value? So what am I doing wrong?

```
var days = parseInt($(this).attr('#day_output'), 10);
var total = parseInt($('#amount_outputTotal'));
var fees = 5;
var valueout;

valueout = 60 * days + fees;

$(document).ready(function() {
    $('#Output').html(valueout);
});

```

Many Thanks Glenn.