beforeShowDay两天打电话

Question

我怎样才能阻止theShowDay函数调用一天的时间？ jquery datepicker有两个月。

30.01.2013 -> month side jan
31.01.2013 -> month side jan
01.02.2013 -> month side jan (last invisible day / placehoder)
02.02.2013 -> month side jan (last invisible day / placehoder)
03.02.2013 -> month side jan (last invisible day / placehoder)
----------------------------    
28.01.2013 -> month side feb (first invisible day / placehoder)
29.01.2013 -> month side feb (first invisible day / placehoder)
30.01.2013 -> month side feb (first invisible day / placehoder)
31.01.2013 -> month side feb (first invisible day / placehoder)
01.02.2013 -> month side feb
01.02.2013 -> month side feb
02.02.2013 -> month side feb
02.02.2013 -> month side feb
03.02.2013 -> month side feb
03.02.2013 -> month side feb
04.02.2013 -> month side feb
04.02.2013 -> month side feb

with beforeShowDay我算了几天，如果有几天叫了两次，结果就不对了...我怎么能阻止几天的双重调用？

问候！

Answer 1

根据this jquery ui示例：

$(function() {
    $( "#datepicker" ).datepicker({
        showOtherMonths: true,
        selectOtherMonths: true,
        numberOfMonths: 2
    });
});