```
<input id="datepicker">

    var picker = new Pikaday({
    disableDayFn: function(date){
        // Disable Monday
        return date.getDay() === 1;
    },
    field: document.getElementById('datepicker')
});

```

Currently above code is disabling one day, I want it to disable two days. please help me out to sort it

Example : JsFiddle : <http://jsfiddle.net/jpwk4wpv/>