laydate如何根据开始时间或者结束时间限制范围

$(window).load(function(){//初始化时间控件    var cartimeDate = laydate.render({      elem: '#cartime' //用车时间      ,type: 'datetime'      ,format: 'yyyy-MM-dd HH:mm'      ,done:function(value, date){        returntimeDate.config.min=getDateArray(date);//重点      }    });    var returntimeDate = laydate.render({      elem: '#returntime' //预计回车时间      ,type: 'datetime'      ,format: 'yyyy-MM-dd HH:mm'      ,done:function(value, date){        cartimeDate.config.max=getDateArray(date);//重点      }    });    function getDateArray(date){//获取时间数组      var darray={};      darray.year=date.year;      darray.month=date.month - 1;      var day=date.date;      if(date.hours == 23 && date.minutes == 59 && date.seconds == 59){        day = day + 1;      }else{        darray.hours = date.hours;        darray.minutes = date.minutes;        darray.seconds = date.seconds;      }      darray.date=day;      return darray;    }  });