$(document).ready(function(){
	$as = $('.slide.first');
	
	function at(){						  
		$ns = $as;
		if(!$as.hasClass('last')){
			$ns = $as.next();
		} else {
			$ns = $('.slide.first');
		}
		$ns.css('display','block').css('z-index',2).css('opacity', 1);
		$as.css('z-index',3).stop().animate({opacity: 0}, 1000,function(){
			$(this).css('display','none');
		});
		$as = $ns;
		clearTimeout($t);
		$t = setTimeout(function(){at();}, 5000);
	}
	$t = setTimeout(function(){at();}, 5000);
});