Datepicker

$(".datepicker").datepicker({maxDate: '0'});

For more information check this link : http://api.jqueryui.com/datepicker/#option-maxDate

Or you can use this code :


$(function () {

    var dateFormat = 'dd.mm.yy';

    $("#from").datepicker({
        maxDate: '0',
        dateFormat: dateFormat,
        onSelect: function (selectedDate) {
            var date = $.datepicker.parseDate(dateFormat, selectedDate)
            var tod = date.setDate(date.getDate());
            $to.prop('disabled', false).datepicker( "option", "minDate", new Date(tod ));
        }
    });
    var $to = $("#to").datepicker({
        dateFormat: dateFormat
    }).prop('disabled', true);
});

You can see demo here : http://jsfiddle.net/2tn4A/3/