jQuery Type error

[anish-kumarbasti]

    $(document).ready(function() {
        $('#service').chosen();
        $('#userid').chosen();
        $('#service').on('change', function() {

code note run
alert('Ok');

[tjschuck]

Not really enough information here to help you.

Please link to a publicly accessible page (or a Fiddle) that shows the issue so we can attempt to reproduce.

Closing until more info is provided, then we'll reopen.