function next_slide_on_image_click() { 
?>
<script type="text/javascript">
window.addEventListener("DOMContentLoaded", function () { 
	(function($){
		$('.avia-slide-wrap img').click(function() {
			$(this).closest('.avia-slideshow').find('.avia-slideshow-arrows a.next-slide').trigger('click');
		});
	})(jQuery);
});
</script>
<?php 
}
add_action('wp_footer', 'next_slide_on_image_click');