Bootstrap multiselect with n-option selected at a time

//////////////////////////////// HTML

<select multiple="multiple" id="ddl_Stations" class="multiselect">

                     <option value="Alagawadi">Alagawadi</option>

                     <option value="Attigundi">Attigundi</option>

                     <option value="Balehonnur.M">Balehonnur</option>

                     <option value="Bannur">Bannur</option>

                     <option value="Bennur">Bannur</option>

                     <option value="Chandapur">Chandapur</option>

              </select>

////////////////////////////// Bootstrap multi-select

$(document).ready(function () {

    $('.multiselect').multiselect({

        includeSelectAllOption: true,

        enableFiltering: true,

        maxHeight: 200

    });

});

////////////////////////////// Bootstrap multi-select with n-number options

$(document).ready(function () 

{

        $('.multiselect').multiselect({

          enableFiltering: true,

                         maxHeight: 400,

                         enableCaseInsensitiveFiltering: true,

                         nonSelectedText: 'Select Stations',

                         numberDisplayed: 2,

                         selectAll: false,

                         onChange: function (option, checked) {

                             // Get selected options.

                             var selectedOptions = jQuery('.multiselect option:selected');

                             if (selectedOptions.length >= 5) {

                                 // Disable all other checkboxes.

                                 var nonSelectedOptions = 

                                    jQuery('.multiselect option').filter(function () {

                                     return !jQuery(this).is(':selected');

                                 });

                                 nonSelectedOptions.each(function () {

                             var input = jQuery('input[value="' + jQuery(this).val() + '"]');

                                     input.prop('disabled', true);

                                     input.parent('li').addClass('disabled');

                                 });

                             }

                             else {

                                 // Enable all checkboxes.

                                 jQuery('.multiselect option').each(function () {

                             var input = jQuery('input[value="' + jQuery(this).val() + '"]');

                                     input.prop('disabled', false);

                                     input.parent('li').addClass('disabled');

                                 });

                             }

                         }

                     });

                 });