How to pass object from one method to another

[String]

Hi Team ,

Am using GlideAjax for my integration ,when the use click on open button in a form ,am fetching the tag number and sending to 3rd party through rest integration and getting the successful JSON .

AM pharsing the JSON and trying to insert in the tag number field ,So before inserting am trying to validate the current tag number and incoming tag number is same or not 

Below is my code 

function getDetails() {

    var v_displayRef = g_form.getReference('display_name');

    var referencedSysId = g_form.getValue('display_name');

var loadingDialog = new GlideDialogWindow('load_meter', true);

        loadingDialog.setTitle('Please wait..');

        loadingDialog.setSize(400, 200);

        loadingDialog.render();

var assetID = referencedSysId;

    var getValues = new GlideAjax('x_cenv_api_hbm_ton.FetchAdditionalDetails'); //Calling Script Include.

    getValues.addParam('sysparm_name', 'GetDetailsAPI'); // Function name of the script include.

    getValues.addParam('sysparm_asset', assetID);

getValues.getXML(getResponse.bind({dialog: loadingDialog}));

}

function getResponse(response) {

    var answer = response.responseXML.documentElement.getAttribute("answer");

    if (answer != 500) {

            var formatJSON = JSON.parse(answer);

            alert("checking......." + current.u_tag);.....not getting the current field 

            g_form.setValue('u_tag', formatJSON.Tag);

            this.dialog.destroy();

            g_form.addInfoMessage("Below fileds are updated ");

    } else {

        this.dialog.destroy();

        g_form.addErrorMessage('Error occurred, please try after some time');

    }

}

Please guid me to get the current field value 

in the above code I have kept  alert("checking......." + current.u_tag);

@Ankur Bawiskar 

[Ankur Bawiskar · Accepted solution]

@String 

since it's client side script current object won't work

you need to use g_form.getValue()

alert("checking......." + g_form.getValue('u_tag'));

If my response helped please mark it correct and close the thread so that it benefits future readers.