var lastEl;
$('.container_bb').each(function(i, el) {
setTimeout(function() {
if (lastEl) lastEl.removeClass('show');
lastEl = $(el).addClass('show');
}, i * 5000);
});
var slides = $('.slides'), current = slides.filter('.current').index(), time = 1000;
setInterval(function() {
slides.eq(current).removeClass('current');
++current;
if (current >= slides.length) current = 0;
slides.eq(current).addClass('current');
}, time);
// все анимации - в стилях