exclude weekends to be clickable on jQuery datepicker

I would like to prevent the user from cli开发者_运维百科cking on saturdays/sundays (week-ends) when he selects a date using the jQuery UI datepicker widget.

Is there a way to accomplish this? If not, which are the alternatives ways to accomplish this?

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$("#datepicker").datepicker({ beforeShowDay: $.datepicker.noWeekends });