$('#s1').cycle({ fx: 'zoom', easing: 'easeInBounce', delay: -4000 });
$('#s2').cycle({ fx: 'zoom', easing: 'easeInBounce', delay: -4000 });
$('#s3').cycle({ fx: 'zoom', easing: 'easeInBounce', delay: -4000 });
$('#s4').cycle({ fx: 'zoom', easing: 'easeInBounce', delay: -4000 });