Something about Work

S.Ald.init = function() {

	var NICK = decode(S.Cookie.get("_nk_")) || decode(S.Cookie.get("tracknick")),
	tms_product = S.query('a', S.get('div.hot-banner-wrapper')),
	needald = false,
	tms_title = [],
	new_ald = [];

	for (var i = 0; i < tms_product.length; i++) {

		if (tms_product[i].getAttribute('data-ald') == 'yes') {
			needald = true;
		} else {
			//将现有的TMS指定显示的商品Title保存起来
			tms_title.push(tms_product[i].title);
		}
	}
	// 如果Cookie里面存在用户信息则继续执行
	if (!NICK || !needald)
	 return;

	S.getScript('http://ald.taobao.com/home/recommendStrValueJson.htm?appID=94&num;=1&varName;=aldata&key;=' + encodeURI(NICK),
	function() {
		if (typeof aldata === 'undefined' || aldata.length != 6)
		 return;

		var POSITION_ID = ["15004843018100849003", "1500484303e36c07f894", "1500484304dcc54f6ca9", "1500484305c313771183", "1500484306ae48c2cc1e", "15004843075b08638541"];

		//删除阿拉丁与TMS指定显示的重复数据,构建新的数组
		for (var i = 0; i < aldata.length; i++) {
			if (!S.inArray(aldata[i].title, tms_title)) {
				new_ald.push(aldata[i]);

			}
		}

		for (var i = 0, j = tms_product.length; i < j; i++) {
			var item = tms_product[i];
			if (item.getAttribute('data-ald') == 'yes') {

				//拼接recommend_id与TMS位置埋点信息
				new_ald[0].url = "http://ju.atpanel.com/?url=" + new_ald[0].url + "&recommendId;=" + new_ald[0].biParam + "?ad_id=&am;_id=&cm;_id=&pm;_id=" + POSITION_ID[i];

				var img = S.DOM.get('img', item);
				//替换超链接的标题，图片链接，跳转链接
				item.title = new_ald[0].title;
				img.src = new_ald[0].img;
				item.href = new_ald[0].url;
				//填充完毕删除该元素
				new_ald.splice(0, 1);
			}
		}

	});
	// unicode解码
	function decode(str) {
		if (str) {
			return str.replace(/\\u([0-9a-f]{4,4})/ig,
			function(t, m1) {
				return String.fromCharCode(parseInt(m1, 16));
			});
		} else {
			//str为空字符串
			return null;
		}
	};

};