Date range in bootstrap date picker control using jquery

//////HTML

<asp:TextBox class="form-control" runat="server" AutoComplete="off" ClientIDMode="Static"

                                                        placeholder="dd/mm/yyyy" ID="Startdate");" />

//////Jquery
1.

$(document).ready(function () {

            setdatesRanges();

            Sys.WebForms.PageRequestManager.getInstance().add_endRequest(setdatesRanges);

        });

2.

function setdatesRanges() {

            Date_Range('Startdate', 'EndDate', true);

        }

3.

function Date_Range(tFrID, tToID, IsStartDate) {

    var setMinDate = "";

    if (IsStartDate == true) {

        setMinDate = 'now';

    }

    $('#' + tFrID + ',#' + tToID + '').datepicker({

        format: "dd/mm/yyyy",

        useCurrent: false,

        autoclose: true,

        startDate: setMinDate

    });

    $("#Startdate").datepicker().on('changeDate', function (e) {

        var minDate = new Date(e.date);

        $('#' + tToID).datepicker('setStartDate', minDate);

        $('#' + tToID).val($(this).val());

    });

}