修改js的描述信息

+/**
+ *  商品详情  --评论和咨询tab
+ * @author: Lynnic
+ * @date: 2015/11/18
+ */
 var $ = require('jquery'),
             tip = require('../../plugin/tip');
 var commentsNum;

 /**
- *  商品详情
+ *  商品详情  --异步加载页面下半部分
  * @author: liangzhifeng<zhifeng.liang@yoho.cn>
  * @date: 2015/11/18
  */

 /**
- *  商品详情
+ *  商品详情 --添加收藏
  * @author: Lynnic
  * @date: 2015/11/24
  */

+/**
+ *  商品详情  --滚动页面加载
+ * @author: Lynnic
+ * @date: 2015/11/25
+ */
+var $ = require('jquery'),
+    loading = require('../../plugin/loading'),
+    tip = require('../../plugin/tip');
+
+var loadMoreUrl = $('#loadMoreUrl').val(),
+    $commentsDiv = $('#goods-comments'),
+    $consultsDiv = $('#goods-consults'),
+    winH = $(window).height(),
+    searching = false,
+    end = false;
+
+var jsonObj;
+
+//插入评论列表底部
+function insertCommentsDiv(json) {
+    var html = '';
+    var i;
+
+
+    for (i = 0; i < json.length; i++) {
+        html += '<div class="comment-item">';
+        html += '<span class="user-name">' + json[i].userName + '</span>';
+        html += '<span class="goods-spec">' + json[i].desc + '</span>';
+        html += '<span class="goods-spec">' + json[i].content + '</span>';
+        html += '<span class="goods-spec">' + json[i].time + '</span>';
+    }
+    $commentsDiv.append(html);
+}
+
+//插入咨询列表底部
+function insertConsultsDiv(json) {
+    var html = '';
+    var i;
+
+
+    for (i = 0; i < json.length; i++) {
+        html += '<div class="consult-item"> ';
+        html += '<div class="question"> ';
+        html += '<span class="iconfont">&#xe639;</span> ';
+        html += '<p> ';
+        html += json[i].question + '<br> ';
+        html += '<span class="time">' + json[i].time + '</span> ';
+        html += '</p> ';
+        html += '</div> ';
+
+        html += '<div class="answer"> ';
+        html += '<span class="iconfont">&#xe63c;</span> ';
+        html += '<p>' + json[i].answer + '</p> ';
+        html += '</div> ';
+        html += '</div> ';
+    }
+    $consultsDiv.append(html);
+}
+
+function search() {
+    if (searching || end) {
+        return;
+    }
+    searching = true;
+
+    loading.showLoadingMask();
+
+    $.ajax({
+        type: 'GET',
+        url: loadMoreUrl,
+        success: function(data) {
+            if (data.length > 0) {
+                jsonObj = JSON.parse(data);
+                if ($commentsDiv.length > 0) {
+                    insertCommentsDiv(jsonObj);
+                } else if ($consultsDiv.length > 0) {
+                    insertConsultsDiv(jsonObj);
+                }
+            }
+            searching = false;
+            end = true;
+            loading.hideLoadingMask();
+        },
+        error: function() {
+            tip.show('网络断开连接了~');
+            searching = false;
+            loading.hideLoadingMask();
+        }
+    });
+}
+
+
+function scrollHandler() {
+    if (!end || $(window).scrollTop() + winH >= $(document).height() - 50) {
+        search();
+    }
+}
+
+//srcoll to load more
+$(window).scroll(function() {
+    window.requestAnimationFrame(scrollHandler);
+});
+