<link rel="stylesheet" type="text/css" href="slick/slick.css"/>
// Add the new slick-theme.css if you want the default styling
<link rel="stylesheet" type="text/css" href="slick/slick-theme.css"/>
	
 <?php if($this->item->params->get('itemRelated') && isset($this->relatedItems)): ?>
  <!-- Related items by tag -->
  		<h3><?php echo JText::_("K2_RELATED_ITEMS_BY_TAG"); ?></h3>
	<div class="itemRelated autoplay">

			<?php foreach($this->relatedItems as $key=>$item): ?>
				<div>
					  <!-- This is the part where the item related parts are located  -->
				</div>
			<?php endforeach; ?>

		<div class="clr"></div>
	</div>
	<?php endif; ?>
	
	
	<script type="text/javascript" src="//code.jquery.com/jquery-1.11.0.min.js"></script>
	<script type="text/javascript" src="//code.jquery.com/jquery-migrate-1.2.1.min.js"></script>
	<script type="text/javascript" src="slick/slick.min.js"></script>
	
	<script type="text/javascript">
		$('.autoplay').slick({
		  slidesToShow: 3,
		  slidesToScroll: 1,
		  autoplay: true,
		  autoplaySpeed: 2000,
		});
	</script>

<?php
$document = JFactory::getDocument();
$document->addScript('FULL_PATH_TO_SLICK.JS');
$document->addScriptDeclaration('
	(function($){
		$(document).ready(function(){
			$(".autoplay").slick({
			  slidesToShow: 3,
			  slidesToScroll: 1,
			  autoplay: true,
			  autoplaySpeed: 2000
			});
		});
	})(jQuery);
');
?>