https://richmondbizsense.com/wp-content/plugins/cyclone-slider/templates/thumbnails/script.js

1(function() {
2	var main = '.cycloneslider-template-thumbnails';
3	
4	jQuery(document).on('cycle-initialized', main+' .cycloneslider-slides', function( event, optionHash ) {
5		
6		jQuery(this).parent().next().find('li').eq(optionHash.currSlide).addClass('current'); /* Highlight first thumb */
7		
8	});
9	
10	jQuery(document).on('cycle-before', '.cycloneslider-template-thumbnails .cycloneslider-slides', function( event, optionHash, outgoingSlideEl, incomingSlideEl, forwardFlag ) {
11		var i = optionHash.nextSlide;
12		
13		jQuery(this).parent().next().find('li').removeClass('current').eq(i).addClass('current');
14		
15	});
16	
17	jQuery(document).on('click', '.cycloneslider-thumbnails li', function(){
18		var i = jQuery(this).index();
19		
20		jQuery(this).parents('.cycloneslider-thumbnails').prev().find('.cycloneslider-slides').cycle('goto', i);
21	});
22	
23})();