/**
	 * Slideshow
	 */   	
  function slideSwitch() {
    //clearTimeout(timer);
    var $active = $('div.ref img.active');
    if ( $active.length == 0 ) $active = $('div.ref img:last');
    var $next =  $active.next().length ? $active.next() : $('div.ref img:first');
      $active.addClass('last-active');
      $next.css({opacity: 0.0}).addClass('active').animate({opacity: 1.0}, 2000, function() {
        $active.removeClass('active last-active');
      });
      timer = window.setTimeout('slideSwitch()', 4000);
    //clearTimeout(timer);
  }
  $(document).ready(function() {
    //$(function() { setInterval( "slideSwitch()", 4000 );  });
    slideSwitch();
  });