product desc

@@ -4,23 +4,16 @@
  * @date: 2015/11/18
  */
 var $ = require('jquery'),
-    Hammer = require('yoho.hammer'),
     lazyLoad = require('yoho.lazyload');
 
-var loading = require('../../plugin/loading');
+var loading = require('../../plugin/loading'),
     tip = require('../../plugin/tip');
 
 var introUrl = $('#introUrl').val(),
     winH = $(window).height(),
+    $productDesc,
     searching = false,
-    end = false,
-    num;
-
-function scrollHandler() {
-    if ($(window).scrollTop() + winH >= $(document).height() - 50) {
-        search();
-    }
-}
+    end = false;
 
 function search() {
     if (searching || end) {
@@ -34,7 +27,7 @@ function search() {
         type: 'GET',
         url: introUrl,
         success: function(data) {
-            var $productDesc = $('#productDesc');
+            $productDesc = $('#productDesc');
             $productDesc.append(data);
 
             lazyLoad($productDesc.find('img.lazy'));
@@ -51,8 +44,14 @@ function search() {
     });
 }
 
+function scrollHandler() {
+    if ($(window).scrollTop() + winH >= $(document).height() - 50) {
+        search();
+    }
+}
+
 //srcoll to load more
-$(window).scroll(function () {
+$(window).scroll(function() {
     window.requestAnimationFrame(scrollHandler);
 });