添加来源信息记录

 {
   "name": "yas-jssdk",
-  "version": "1.0.16",
+  "version": "1.0.17",
   "description": "YOHO!采集系统的前端js的开发包",
   "keywords": ["YOHO!", "Acquisition", "System", "JS-SDK"],
   "homepage": "",

@@ -127,6 +127,15 @@ var _yas = function(initTime, version, tid, uid, geo, selector) {
     });
   }
 
+    var reg = new RegExp("(^|&)mkt_code=([^&]*)(&|$)", "i");
+    var regString = window.location.search.substr(1).match(reg);
+    if (regString !== null) {
+        cookies('mkt_code', unescape(regString[2]), {
+          path: "/",
+          domain: yasDomain
+        });
+    }
+
     /**
      * 用于统计用户点击的selector元素的序号
      * 记录cookie, 待进入新页面后通过send方法将cookie中的鼠标记录发送并清空.
@@ -303,6 +312,14 @@ function getMouseEventPosition(e) {
   };
 }
 
+function getMkct() {
+    var mkct = cookies('mkt_code');
+    if (mkct) {
+        return mkct;
+    }
+    return null;
+}
+
 //超过5次发送自定义信息
 var evTimes = 0;
 
@@ -389,6 +406,10 @@ _yas.sendCustomInfo = function(json, flag) {
         var info = util.merge(appInfo, custInfo);
         info = util.merge(info, browserInfo);
         info = util.merge(info, json);
+        var mkct = getMkct();
+        if (mkct) {
+            info = util.merge(info, mkct);
+        }
         var param = util.genParam(info);
         cross.imgSend(param, function () {});
     }