var dateFrom = app.calendar({

                input: '#choose_date_from',
                dateFormat: "yyyy/mm/dd",
                dayNames: $.msgs.dayNames.split(','),
                dayNamesShort: $.msgs.dayNamesShort.split(','),
                monthNames: $.msgs.monthNames.split(','),
                onChange: function(p, value){
                    $(p.input.data('handler')).val(value);
                },
                onDayClick: function(p, dayCOntainer, year, month, day){
                    var _year = parseInt(year);
                    var _month = parseInt(month);
                    var _day = parseInt(day);
                    var current_date = new Date();
                    var date = new Date(_year, _month, _day);
                    var selectDay = date.getDay();
                    dateFrom.close();
                    if (selectDay != 1) {
                        $('#button-submit-order').addClass('disabled');
                        app.alert('亲，只能从星期一开始选择哦～～');
                    } else if (date < current_date) {
                        app.alert('可爱的亲，开始时间不能小于当前日期～～');
                        $('#button-submit-order').addClass('disabled');
                    } else {
                        $('#button-submit-order').removeClass('disabled');
                    }
                }