How do I clear/reset the selected dates on the jQuery UI Datepicker calendar?

I was trying to accomplish this very thing, that is, empty the datepicker so that filters entered by the user could be removed. Googling a bit I found this sweet piece of code:

You can add the clear feature even on read only fields. Just add the following code to your datepicker:

}).keyup(function(e) {
    if(e.keyCode == 8 || e.keyCode == 46) {
        $.datepicker._clearDate(this);
    }
});

People will be able to highlight (even Read Only fields) and then use backspace or delete key to remove the date using _clearDate function.

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