(function($){
	var wrap = document.getElementById('borga-banner');
	var items = $(wrap).find('.item');
	var count = items.length;
	var speed = 500;
	var delay = 3500;
	var current = 0;
	
	var showNextItem = function(){
		var prev, curr;
		
		if(current === -1){
			prev = null;
			curr = items[0];
			current++;
		} else if(current+1 >= count) {
			prev = items[current];
			curr = items[0];
			current = 0;
		} else {
			prev = items[current];
			curr = items[current+1];
			current++;
		}
		
		$(prev).css({'z-index': 1});
		$(curr).css({'z-index': 2});
		
		$(curr).animate({'opacity': 1}, speed, function(){
			$(prev).css({'opacity': 0});
		});
	};
	
	var setup = function(){
		for(var i = 0; i < count; i++){
			$(items[i]).css({
				visibility: 'visible',
				opacity: (i === 0) ? 1 : 0
			});
		}
	};
	
	setup();
	setInterval(showNextItem, delay);
}(jQuery));