Jquery日期选择器，我如何设置未来的日期

我有一个显示今天日期的文本框和一个日历图标，当单击该图标时，会打开一个选择了今天日期的日期选择器。我希望日期选择器在以后的某个日期打开，即2012年3月12日，当您单击日历图标时。

我可以在firebug-中的json响应中看到未来的日期

[{"date":"01/05/2012","available":true},{"date":"05/05/2012","available":true}]

但是，当单击日历图标时，我如何刷新/重新绘制日历以显示这些日期呢。

这是我的日期选择器

// Load the Datepicker options    
$(document).ready(function(){        
    $('#<%= ViewData.Model.name %>_DatePickerCalendar_<%= ViewData.Model.sector      %>').datepicker({
        changeYear: true,
        changeMonth: true,
        clearText: '',
        closeText: '',
        currentText: '',
        prevText: '«',
        nextText: '»',
        dateFormat: 'dd/mm/yy',         
        firstDay: 1,
        numberOfMonths: 2,
        minDate: 0,
        <% if(Model.name == "Flight") { %>
            maxDate: '+16m',
        <% } else { %>
            maxDate: new Date(<%=Model.maxDate.Year %>, <%=Model.maxDate.Month %> - 1,        <%=Model.maxDate.Day %>),
        <% } %>
        mandatory: true,
        showOn: 'both', 
        buttonImage: '/images/icons/ico-calendar.gif', 
        buttonImageOnly: true,
        buttonText: 'view calendar',
        changeFirstDay: false,            
            var date = new Date();
            if (sDate.value != "") 
                date = $.datepicker.parseDate('dd/mm/yy', sDate.value); 
            cbBeforeShow(date, '<%= ViewData.Model.name %>', '<%= ViewData.Model.sector %>', '<%= ConfigurationSettings.AppSettings["FutureAvailabilityYears"]%>');                               
        },
        beforeShowDay: cbCheckDayAvailable,            
        onChangeMonthYear: function(year, month, inst) {
            <%--/*
                When displaying multiple months with a set maxDate setting, and you   select the last month
                datepicker shows the max month last, this causes GetAvailability to not query the correct months
                changing the selected month to the previous means the correct availability is retrieved
            */--%>
            if (typeof inst.settings.maxDate === "object" &&
                month == (inst.settings.maxDate.getMonth() + 1) && 
                year == inst.settings.maxDate.getYear()) {
                month--;
            } 
            cbChangeMonthYear(year, month, '<%= ViewData.Model.name %>', '<%= ViewData.Model.sector %>', '<%= ConfigurationSettings.AppSettings["FutureAvailabilityYears"]%>')
        },                        
    <% } else { %>
        beforeShowDay: function(sDate) {
            cbCheckGreaterThanDateOut('<%= ViewData.Model.name %>'); 
        },
        beforeShowDay: function() {
            return [true, _gDatePickerCalendar.availDayClass ]
        },            
        onChangeMonthYear: null,
    <% } %>
        onClose: function(sDate) {
            cbOnClose('<%= ViewData.Model.name %>', '<%= ViewData.Model.name %>', '<%= ViewData.Model.sector %>');
        },              
        onSelect: function(sDate) {                
            cbOnSelect(sDate, '<%= ViewData.Model.name %>', <%= ViewData.Model.sector %>);                
        },
        defaultDate: new Date('15 October 2012')       
    });       
});

在日期选择器"beforeShow"上调用的javascript是-

function cbBeforeShow(dDate, model, sector, futureAvailabilityMonths) {        
    _gDatePickerCalendar.GetAvailability(dDate, null, null, sector);
    setTimeout('$("#ui-datepicker-div")', 800);
    //checkForEmptyAvailabilityForMonth(dDate, null, null, model, sector, futureAvailabilityMonths);            
    $('#ui-datepicker-div').show();          
}

这是GetAvailability方法中的ajax调用

$.ajax({
        url: _gDatePickerCalendar.availUrl,
        dataType: "json",
        async: false,
        success: function(data) {
            $.each(data, function(i, item) {
                if (item.date != "") {
                    var date = new Date(item.date.substring(6, 10), item.date.substring(3, 5) - 1, item.date.substring(0, 2));
                    _gDatePickerCalendar.availDays[i] = date;
                }
            });
        },
        complete: function() {
            var dd = new Date();
            alert("Just about to get a date from the array");
            dd = _gDatePickerCalendar.availDays[0];
            alert(dd);                                
        }
    });

很抱歉粘贴了这么多代码，但我束手无策：（