关于日历，我想禁用上个月日期，从2019，10,31开始

My Calender code is
Calendar.setup ({
    inputField : "date11", ifFormat : "%Y-%m-%d", showsTime : false, button : "date11_img"+t_i, singleClick : true, step : 1, dateStatusFunc : dateRange
    });
Function 
function dateRange(date)
{
    var todaydate="";
    var d = new Date(),
    month = '' + (d.getMonth() + 1),
    day = '' + d.getDate(),
    year = d.getFullYear();
    if (month.length < 2) month = '0' + month;
    if (day.length < 2) day = '0' + day;
    todaydate= [year, month, day].join('-');
    var splittoday = todaydate.split("-");
    var m = Number(splittoday[1])-1;
    var now = new Date(Number(splittoday[0]),Number(m),Number(splittoday[2]),0,0,0);
    now.setDate(now.getDate());
    return (date.getTime() > now.getTime());
}   
I want to how to disable 2 different sets of dates . Currently i have disabled all the future dates . 
Now i want to disable all past month dates for the same calender.

应该将两组不同的值传递给这个场景处理的对象。我已经调用了一个函数，但是我想再调用一个函数。需要方法来做那件事。