var $hays = jQuery.noConflict();

$hays(document).ready(function()
{
  rotateBanner(1);
});

function rotateBanner(cur)
{
  var numBanners = $hays('#banner img').length;
  cur = cur % numBanners;
	
  $hays('#banner img').eq(cur).fadeOut(function()
  {
    $hays('#banner img').each(function(i) {
      $hays(this).css(
        'zIndex', ((numBanners - i) + cur) % numBanners
      );
    });
    $hays(this).show();
    setTimeout(function() {rotateBanner(++cur);}, 3000);
  });
}