$(document).ready(function(){
//底部弹出餐单$(".select_pro").hover(
	function(){$(this).find(".son_ul").stop(true,true).slideDown(300)},
	function(){$(this).find(".son_ul").slideUp(300)});
$win=$(window);
var show_1 = $("#show_1").offset().top;
$win.scroll(function () {
	if ( ($win.height() - show_1 + $win.scrollTop())/$win.height() >= 0.25  ) {
			$("#show_1 a").css({"right":"0px","opacity":"1"});
		}
});
var time_3 = "";
$("div.section_3").hover(
	function(){clearInterval(time_3);},
	function(){t_start();}
);
function t_start(){
	if (time_3){clearInterval(time_3)};
	time_3 = setInterval(function() { var i =	$("div.section_3 ul.nav li.on").index();$("div.section_3 ul.nav li").eq((i==2)?0:(i+1)).trigger("mouseout"); },3000);	}
$("div.section_3 ul.nav li").hover(
	function(){
		var i = $(this).index();
		$(this).addClass("on").siblings().removeClass("on");
		$("div.section_3 ul.tab li").eq(i).css("display","block").siblings().css("display","none");
		}
);t_start();
$("div.section_4 div.my_nav span").click(
	function(){
		var i = $(this).index();
		$(this).addClass("on").siblings().removeClass("on");
		$("div.section_4 ul li").eq(i).css("display","block").siblings().css("display","none");
		}
);})