function AktivVonChange() {
            debugger;
            var startDate = $("#AktivVon").data("kendoDatePicker").value();

            $("#AktivBis").kendoDatePicker({
                value: startDate,
                disableDates: function (date) {
                    if (date && compareDates(date, startDate)) {
                        return true;
                    } else {
                        return false;
                    }
                }
            });


        }

        function compareDates(date, startDate) {
            if (startDate.getDate() === date.getDate() &&
                startDate.getMonth() === date.getMonth() &&
                startDate.getYear() === date.getYear()) {
                return true;
            }
            return false;
        }

$(document).ready(function()
{
   // add on change to all "From date"
}
);