$(function(){
   var t = n = 0;
   var count = $(".content a").size()
   var play = ".play";
	var playText = ".play .text";
	var playNum = ".play .num a";
	var playConcent = ".play .content a";

	$(playConcent + ":not(:first)").hide();
	$(playText).html($(playConcent + ":first").find("img").attr("alt"));
	$(playNum + ":first").addClass("on");
	$(playText).click(function(){window.open($(playConcent + ":first").attr('href'), "_blank")});
	$(playNum).click(function() {
	   var i = $(this).text() - 1;
	   n = i;
	   if (i >= count) return;
	   $(playText).html($(playConcent).eq(i).find("img").attr('alt'));
	   $(playText).unbind().click(function(){window.open($(playConcent).eq(i).attr('href'), "_self")})
	   $(playConcent).filter(":visible").hide().parent().children().eq(i).fadeIn(1200);
	   $(this).removeClass("on").siblings().removeClass("on");
	   $(this).removeClass("on2").siblings().removeClass("on2");
	   $(this).addClass("on").siblings().addClass("on2");
	});
	t = setInterval('showAuto('+count+')', 1600);
	$(play).hover(function(){clearInterval(t)}, function(){t = setInterval('showAuto('+count+')',1600);});


});

	function showAuto(aa){

	n = n >= (aa - 1) ? 0 : ++n;
	$(".num a").eq(n).trigger('click');
}