底部统计JS兼容 IE code review by bikai

@@ -31,7 +31,11 @@ var _hmt = _hmt || [];
             s.parentNode.insertBefore(hm, s);
         })();
     }
-    window.addEventListener('load', async_load, false);
+    if (window.addEventListener) {
+        window.addEventListener(type, async_load, false);
+    } else if (window.attachEvent) {
+       window.attachEvent("on" + type, async_load);
+    }
 })();
 </script>
 <script>