http://limefrog.io/lms/assets/plugins/jquery-multi-select/js/jquery.multi-select.js
https://localsolo.com/assets/plugins/multiselect/js/jquery.multi-select.js
http://redprinting.co.kr/assets/js/multiselect/js/jquery.multi-select.js
http://x-torrent.net/assets/js/multiselect/js/jquery.multi-select.js