diff --git a/js/codeManage/operManage.js b/js/codeManage/operManage.js
index 9aae93a..b88f619 100644
--- a/js/codeManage/operManage.js
+++ b/js/codeManage/operManage.js
@@ -134,7 +134,7 @@ var startContractAtSlave = function() {
     $("#result")[0].innerHTML="正在启动，请稍候";
 	var request = {};
 	request.action = "startContractByYPK";
-	if (createParam !='') {
+	if (createParam.value !='') {
 	    request.createParam = createParam.value;
 	    $("#createParam").css("color","");
         if (autoConvertStr.value=='on') {
@@ -144,6 +144,8 @@ var startContractAtSlave = function() {
             }catch(e){
               console.log(e);
               $("#createParam").css("color","red");
+              alert("Create Param not JSON Format");
+              return;
             }
         }else{
         }
@@ -206,6 +208,22 @@ function startContractUnits(place) {
     }
     request.isPrivate = global.ypkIsPrivate;
     request.sponsorPeerID = global.peerID;   //peerID of the node
+    if (createParam.value !='') {
+	    request.createParam = createParam.value;
+	    $("#createParam").css("color","");
+        if (autoConvertStr.value=='on') {
+            try{
+              request.createParam = JSON.parse(request.createParam);
+              $("#createParam").css("color","");
+            }catch(e){
+              console.log(e);
+              $("#createParam").css("color","red");
+              alert("Create Param not JSON Format");
+              return;
+            }
+        }else{
+        }
+	}
     console.log(request);
     global.wssocket.send(JSON.stringify(request));
 }