var currentBanner = 0;
var rotateInterval = setInterval("nextBanner()", 3000);

function showBanner(num) {
	if (currentBanner == num) {
		return;
	}
	$('#banners a').hide();
	$('#banner_thumbs li').removeClass('selected');
	currentBanner = num;

	$('#banners a:eq(' + (currentBanner) + ')').fadeIn();
	$('#banner_thumbs li:eq(' + (currentBanner) + ')').addClass('selected');
	clearInterval(rotateInterval);
	rotateInterval = setInterval("nextBanner()", 3000);
}

function nextBanner() {
	var nextNum = currentBanner == 3 ? 0 : currentBanner + 1;
	showBanner(nextNum);
}