function setMenuItem(sum){
	var li = $(".top_menu .menu li");
	li.removeClass("ed");
	li.eq(sum).addClass("ed");
}

function resetPictureSize(wid){
	var imgArr = $(".content_picture").find("img");
	var tempObj;
	for(var i = 0; i < imgArr.length; i++){
		tempObj = $(imgArr[i]);
		if(tempObj.width() > wid)
			tempObj.width(wid);
	}
}

function leftMenuOper(){
	var title = $(".left_menu_title");
	title.bind("click",function(){
		var cookies = getCookie("LeftMenuOper");
		if(typeof(cookies) == "object"){
			cookies = "";
			setCookie("LeftMenuOper",cookies,null,"/");
		}
		var ds = $(this);
		var val = ds.attr("value");
		var list = ds.next(".left_menu_list");



		var hideObjs
		if(list.length == 0){
			hideObjs = $(".left_menu_list").filter(":visible");
		}else{
			hideObjs = $(".left_menu_list").filter(":visible").not(list[0]);
		}
		hideObjs.slideUp("slow",function(){
			hideObjs.hide();
		});



		if(list.css("display") == "none"){
			if(val){
				setCookie("LeftMenuOper","," + val,null,"/");
			}
			list.slideDown("slow",function(){
				list.css("display","");
			});
		}else{
			if(val){
				setCookie("LeftMenuOper","",null,"/");
			}
			list.slideUp("slow",function(){
				list.css("display","none");
			});
		}
	});
}

function guendong(){
	var div = $(".guendong_products");
	var ul = div.find("ul");
	var ulWid = ul.width();
	if(ulWid < div.width()) return;

	ul.clone().prependTo(div);

	function marquee(){
		if(ulWid - div.scrollLeft() <= 0)
			div[0].scrollLeft -= ulWid;
		else{
			div[0].scrollLeft++;
		}
	}

	var speed = 30; //速度数值越大速度越慢
	var to = setInterval(marquee,speed);
	div.hover(
		function(){
			clearInterval(to);
		},function(){
			to = setInterval(marquee,speed);
		}
	);
}

function changeImg(){
	var imgs =  $(".product_img .img");

	var a = $(".product_img .big_img a");
	var bigImg = $(".product_img .big_img img");
	imgs.hover(
		function(){
			var ds = $(this);
			imgs.removeClass("ed2");
			ds.addClass("ed2");
		},
		function(){
			imgs.removeClass("ed2");
		}
	);
	$(".product_img .img img").bind("click",function(){
		var ds = $(this);
		imgs.removeClass("ed");
		ds.closest(".img").addClass("ed");
		a.attr("href",ds.attr("href_"));
		bigImg.attr("src",ds.attr("src_"));

		bigImg.hide();
		bigImg.fadeIn("normal");
	});
}