It prompts that if stop running the script on IE8. (May be the code needs to be optimized. )

[ijobs]

THE CODE:

<script >
    new Kalendae({
         attachTo: dicument.body,
         months: 24,
         mode: "multiple",
         direction: "future",
         selected: ["2018-01-01", "2018-01-02", "2018-01-03", "2018-01-04", "2018-01-05", "2018-01-06", "2018-01-07", "2018-01-08", "2018-01-09", "2018-01-10", "2018-01-11", "2018-01-12", "2018-01-13", "2018-01-14", "2018-01-15", "2018-01-16", "2018-01-17", "2018-01-18", "2018-01-19", "2018-01-20", "2018-01-21", "2018-01-22", "2018-01-23", "2018-01-24", "2018-01-25", "2018-01-26", "2018-01-27", "2018-01-28", "2018-01-29", "2018-01-30", "2018-01-31", "2018-02-01", "2018-02-02", "2018-02-03", "2018-02-04", "2018-02-05", "2018-02-06", "2018-02-07", "2018-02-08", "2018-02-09", "2018-02-10", "2018-02-11", "2018-02-12", "2018-02-13", "2018-02-14", "2018-02-15", "2018-02-16", "2018-02-17", "2018-02-18", "2018-02-19", "2018-02-20", "2018-02-21", "2018-02-22", "2018-02-23", "2018-02-24", "2018-02-25", "2018-02-26", "2018-02-27", "2018-02-28", "2018-03-01", "2018-03-02", "2018-03-03", "2018-03-04", "2018-03-05", "2018-03-06", "2018-03-07", "2018-03-08", "2018-03-09"]
    });
</script>

PS: please notice the parameter "month"

[ijobs]

I modified the code in line 495 to solve the problem.

before:
this._sel.sort(function(a, b){return a.startOf('day').yearDay() - b.startOf('day').yearDay()}

after:

this._sel.sort(
     function(a, b){
          var reg = /-/;
          if(reg.test(a._i)){
               return parseInt(a._i.replace(/-/g, '')) - parseInt(b._i.replace(/-/g, ''));
           }else{
               a._i - b._i;
           }
     }
)

BUT...
-- I find another problem that it worked so slowly when i picked a date.