Jquery UI datepicker. Disable array of Dates

You can use beforeShowDay to do this

The following example disables dates 14 March 2013 thru 16 March 2013

var array = ["2013-03-14","2013-03-15","2013-03-16"]

$('input').datepicker({
    beforeShowDay: function(date){
        var string = jQuery.datepicker.formatDate('yy-mm-dd', date);
        return [ array.indexOf(string) == -1 ]
    }
});

Demo: Fiddle