$(document).ready(function(){
	
	$(".banner_ctrl a").hover(function(){
		$(this).fadeto(100,.5);
		},function(){
		$(this).fadeto(100,.1);
	});
			
	var tnum=$(".m_banner .banner").length-1;
	var nnum=0;		
	$(".banner_ctrl .prev").click(function(){
		(nnum-1)<0?n2=tnum:n2=nnum-1;
		bswitch(nnum,n2);
		nnum=n2;
	});	
	$(".banner_ctrl .next").click(function(){
		(nnum+1)>tnum?n2=0:n2=nnum+1;
		bswitch(nnum,n2);
		nnum=n2;
	});
	function bswitch(nnum,n2){
		$(".m_banner .banner:eq("+nnum+")").fadeout();
		$(".m_banner .banner:eq("+n2+")").fadein();
	};
							
	$(function(){
		var switchtime;
	 	$(".m_banner").hover(function(){
			clearinterval(switchtime);
		},function(){
		switchtime = setinterval(function(){
			(nnum+1)>tnum?n2=0:n2=nnum+1;
			bswitch(nnum,n2);
			nnum=n2;
		},8000);
		}).trigger("mouseleave");
	});

});