Need help : Javascript

Hi guys,

I need some help in this forum, to guide me is there anything wrong within my JavaScript. I got this code from my previous thread whereas I actually didn't have any knowledge of JavaScript. I'm from Dynamics F&O, btw.

So here is the code :

function OpenAndSaveForm(executionContext) {
//Get the form context
var formContext = executionContext.getFormContext();
// Get the form type
var formType = formContext.ui.getFormType();
if(formType == 1) { //create form
    try {
             // for default company
             var globalContext = Xrm.Utility.getGlobalContext();
             var userId = globalContext.userSettings.userId;
             Xrm.WebApi.online.retrieveRecord("systemuser", userId, "?$expand=cdm_Company($select=cdm_companyid,cdm_name)").then(
             function success(result) {
              if (result.hasOwnProperty("cdm_Company")) {
                  var cdm_Company_cdm_companyid = result["cdm_Company"]["cdm_companyid"];
                  var cdm_Company_cdm_name = result["cdm_Company"]["cdm_name"];
                  var companyLookup = new Array();
                  companyLookup[0] = new Object();
                  companyLookup[0].id = cdm_Company_cdm_companyid;
                  companyLookup[0].name = cdm_Company_cdm_name;
                  companyLookup[0].entityType = "cdm_company";
                 formContext.getAttribute("mscrm_company").setValue(companyLookup);
              }
      },
      function(error) {
             console.log(error.message);
       };


       formContext.data.entity.save();
    }
    catch (e) {
        Xrm.Utility.alertDialog(e.message);

    }
  }

}

This is for my model-driven app, What I want to achieve from this code is actually, whenever user click "+ new record", when the form is open, it will automatically save the record.

So I put this into my project as Web Resources and add as OnLoad event in my form. While the saving is working, in that code I also need to set my field "mscrm_company" to user's default company.

I'm not sure why, when this form open, the field company appear in the form with the correct company, but when I hit back, check from he table's raw data, the field is enpty.

May I know is there something wrong with the code? or what is happening ? Is the company displayed on the form actually not save ? or somehow overridden ?

Thanks in advance,