diff --git a/mod/scorm/datamodels/aicc.js b/mod/scorm/datamodels/aicc.js
index 628cb96c4bb..bf84bd05389 100644
--- a/mod/scorm/datamodels/aicc.js
+++ b/mod/scorm/datamodels/aicc.js
@@ -508,6 +508,7 @@ function AICCapi(def, cmiobj, scormauto, cfgwwwroot, scormid, scoid, attempt, vi
     }
 
     function StoreData(data,storetotaltime) {
+        var datastring = '';
         if (storetotaltime) {
             if (cmi.core.lesson_mode == 'normal') {
                 if (cmi.core.credit == 'credit') {
@@ -531,9 +532,8 @@ function AICCapi(def, cmiobj, scormauto, cfgwwwroot, scormid, scoid, attempt, vi
             datastring = CollectData(data,'cmi');
         }
 
-        //popupwin(datastring);
         var myRequest = NewHttpReq();
-        result = DoRequest(myRequest,datamodelurl,datamodelurlparams + datastring);
+        var result = DoRequest(myRequest, datamodelurl, datamodelurlparams + datastring);
 
         if (result === false) {
             return false;
diff --git a/mod/scorm/datamodels/scorm_12.js b/mod/scorm/datamodels/scorm_12.js
index 6d2da9c5bf8..4d540ba897f 100644
--- a/mod/scorm/datamodels/scorm_12.js
+++ b/mod/scorm/datamodels/scorm_12.js
@@ -619,6 +619,7 @@ function SCORMapi1_2(def, cmiobj, cmiint, cmistring256, cmistring4096, scormdebu
     }
 
     function StoreData(data,storetotaltime) {
+        var datastring = '';
         if (storetotaltime) {
             if (cmi.core.lesson_status == 'not attempted') {
                 cmi.core.lesson_status = 'completed';
@@ -647,7 +648,7 @@ function SCORMapi1_2(def, cmiobj, cmiint, cmistring256, cmistring4096, scormdebu
 
         var myRequest = NewHttpReq();
         //alert('going to:' + "<?php p($CFG->wwwroot) ?>/mod/scorm/datamodel.php" + "id=<?php p($id) ?>&a=<?php p($a) ?>&sesskey=<?php echo sesskey() ?>"+datastring);
-        result = DoRequest(myRequest,datamodelurl,datamodelurlparams + datastring);
+        var result = DoRequest(myRequest, datamodelurl, datamodelurlparams + datastring);
 
         if (result === false) {
             return false;
diff --git a/mod/scorm/datamodels/scorm_13.js b/mod/scorm/datamodels/scorm_13.js
index b73d361ba10..703e410dc53 100644
--- a/mod/scorm/datamodels/scorm_13.js
+++ b/mod/scorm/datamodels/scorm_13.js
@@ -1216,7 +1216,7 @@ function SCORMapi1_3(def, cmiobj, cmiint, cmicommentsuser, cmicommentslms, scorm
         datastring += navrequest;
 
         var myRequest = NewHttpReq();
-        result = DoRequest(myRequest, datamodelurl, datamodelurlparams + datastring);
+        var result = DoRequest(myRequest, datamodelurl, datamodelurlparams + datastring);
 
         if (result === false) {
             return false;
diff --git a/mod/scorm/module.js b/mod/scorm/module.js
index e7a42313612..0fd411a4361 100644
--- a/mod/scorm/module.js
+++ b/mod/scorm/module.js
@@ -466,7 +466,6 @@ M.mod_scorm.init = function(Y, nav_display, navposition_left, navposition_top, h
                     // what the outcome actually was.
                     result = {};
                 } else {
-                    mod_scorm_seq = encodeURIComponent(result);
                     result = Y.JSON.parse(result);
                 }
 
@@ -506,7 +505,6 @@ M.mod_scorm.init = function(Y, nav_display, navposition_left, navposition_top, h
                     // what the outcome actually was.
                     result = {};
                 } else {
-                    mod_scorm_seq = encodeURIComponent(result);
                     result = Y.JSON.parse(result);
                 }