Is there a easy or quick way to add dates to highlight in jquery datepicker?

Is there a easy or quick way to add dates to highlight in jquery datepicker?

Right now i add dates like example and it works fine but i have to edit the script every time.

var highlight_days = new Array("10/01/2013", "21/01/2013", "12/01/2013");
beforeShowDay: function(highlight_days) {...

Is there a easy and quick way to add new dates ?