日期控件怎么设置只能选择月初和月末

想把日期控件的设置成只能选择每个月的第一天和最后一天。类似这样的现有只能选择每个星期四的JS  希望各位大神修改成只能选择每个月的第一天和最后一天
this._createCalendar = function(){
      var o = this.options;
      var self = this;
      if (this.options.need2BuildConfig === true && this.options.data) {
            this.options.data.resetStatus(this.createDependencePara4Data());
            var data = this.options.data.getData();
            if (data[0].data) {
                     if (data[0].data.startDate) {
                              var sd = new Date(data[0].data.startDate);
                              if (!FR.isInvalidDate(sd)) {
                                    o.startDate = FR.date2Str(sd, 'yyyy-MM-dd');
                                    this.std = this._createStartDate(o.startDate, o.format, this.viewMode);
                              }
                     }
                     if (data[0].data.endDate) {
                              var ed = new Date(data[0].data.endDate);
                              if (!FR.isInvalidDate(ed)) {
                                    o.endDate = FR.date2Str(ed, 'yyyy-MM-dd');
                                    this.edd = this._createEndDate(o.endDate, o.format, this.viewMode);
                              }
                     }
            }
            this.options.rebuildConfig = false;
      }
      this.datepicker = new FR.DatePicker({
            renderEl: this.$view,
            viewMode: this.viewMode,
            date: FR.str2Date(this.editComp.val(), o.format),
            dateFormat: o.format,
            startDate: this.std,
            endDate: this.edd,
            onDateUpdate:function(){
                     if ($(':focus').length === 0) {
                              self.editComp.focus();
                     }
                     self.editComp.val(FR.date2Str(this.getValue(), o.format));
                     self.isValidateInput();
                     self.fireEvent(FR.Events.AFTEREDIT);
            }
      });
      this.datepicker._loadDateData = function (table, date) {
      if (!date) {
         return;
      }
      var year = date.getFullYear(),
         month = date.getMonth(),
         day = date.getDate();
      var today = new Date(),
         TY = today.getFullYear(),
         TM = today.getMonth(),
         TD = today.getDate();
      this.cache.showYear = year;
      this.cache.showMonth = month;
      var std = this.options.startDate,
         edd = this.options.endDate;
      table.$title.text(Date._MN[month] + ", " + year);
      var nextDay = new Date(date);
      nextDay.setDate(nextDay.getMonthDays() + 1);
      if ((edd && nextDay > edd) || nextDay.getFullYear() > this.CONSTS.MAXYEAR) {
         table.$nextm.addClass('disabled').removeClass('hover').data('disabled', true);
      } else {
         table.$nextm.removeClass('disabled').data('disabled', false);
      }
      var prevDay = new Date(date);
      prevDay.setDate(0);
      if ((std && prevDay < std) || prevDay.getFullYear() < this.CONSTS.MINYEAR) {
         table.$prevm.addClass('disabled').removeClass('hover').data('disabled', true);
      } else {
         table.$prevm.removeClass('disabled').data('disabled', false);
      }
      date.setDate(1);
      var day1 = (date.getDay() - this.CONSTS.FIRSTDAY) % 7;
      date.setDate(0 - day1);
      date.setDate(date.getDate() + 1);
      var $frow = table.find('tbody').children().eq(0);
      for (var i = 0; i < 6; i++) {
         if (!$frow.length) {
            break;
         }
         var $cell = $frow.children().eq(0);
         $cell.addClass('week wn').text(date.getWeekNumber());
         var iday;
         for (var j = 0; j < 7; ++j, date.setDate(iday + 1)) {
            $cell = $cell.next();
            $cell.removeClass().data('nav', this.CONSTS.NAV['day']);
            if (!$cell.length) {
                  break;
            }
            iday = date.getDate();
            $cell.text(iday);
            var current_month = (date.getMonth() == month);
            if (!current_month || j !=4 ) {
                  $cell.addClass('oday').data('disabled',true);
                  continue;
            }
            var disabled = false;
            if ((std != null && std > date) || (edd != null && edd < date)) {
                  $cell.addClass('day disabled');
                  disabled = true;
            } else {
                  $cell.addClass('day');
            }
            $cell.data('disabled', disabled);
            if (!disabled) {
                  if (current_month && iday == day) {
                     this.cache.selectedDate && this.cache.selectedDate.removeClass('selected');
                     $cell.addClass('selected');
                     this.cache.selectedDate = $cell;
                     this.cache.showDay = iday;
                  }
                  if (date.getFullYear() == TY &&
                     date.getMonth() == TM &&
                     iday == TD) {
                     $cell.addClass('today');
                  }
                  var wday = date.getDay();
                  if ([0, 6].indexOf(wday) != -1) {
                     $cell.addClass("weekend");
                  }
            }
         }
         $frow = $frow.next();
      }
}
      if (FR.Browser.isIE8() && this.$view.css('visibility') == 'hidden') {
            this.$view.css("visibility", "visible");
      } else {
            this.$view.show();
      }
      $(document).bind('mousedown', this, this.collapseIf);
      this.modifyPosition();


      var tr = $('tbody>tr',this.datepicker.$datetable);
      for( var i=0; i<tr.length; i++ ){
            var $days = $('td[class!="week wn"]',tr);
            for( var j=0; j<$days.length; j++ ){
                     var $day = $($days[j]);
                     if( 4 != j && !$day.hasClass('oday')){
                              $day.data("disabled",true);
                              $day.attr('class','oday');
                     }
            }
      }
}

编辑于 2017-10-10 16:23