https://www.victimsupport.org.uk/wp-content/themes/Avada-Child-Theme/javascript/get-support-form.js?ver=1

1/**
2 * Get support form JavaScript
3 */
4jQuery(document).ready(function($) {
5    var $ = jQuery;
6    $(document).on('click', '.gform__steps__content__button__next', function(){
7        $('body').addClass('vs-gform-page-step');
8    });
9
10    $(document).on('click', '.gform__steps__content__button__previous', function(){
11        var toPage = $(this).data('page');
12        if(toPage == 1){
13            $('body').removeClass('vs-gform-page-step');
14        }
15    });
16
17    $(document).on('click', '.gform__steps__content__button__submit', function(){
18        $('body').removeClass('vs-gform-page-step');
19    });
20});