Ajax getting an API and output in html

<div id="average<?=$gradeM[$m]['stud_applicant_id']?>">
    <?php echo $ave[$gradeM[$m]['stud_applicant_id']][$qave];?>
</div>


<?php

if($_GET['trigger']=='data'){

            $quarter = $_SESSION['academic_quarter'];
            $empid = $_SESSION['admin_session_obj']['user_data']['emp_id'];
            $sec_id = $_GET['sec_id'];
            $subid = $_GET['edit'];
            $lb_id = $_GET['position'];
            $sai = $_GET['sai'];
            $grade = $_GET['value'];

            //var_dump($quarter,$empid,$sec_id,$subid,$lb_id,$sai,$grade);
            $objclsPostWorkethicGrades->doInsertBHgrades($quarter,$empid,$sec_id,$subid,$lb_id,$sai,$grade);
            $objclsPostWorkethicGrades->doInsertWEavePerSubj($quarter,$empid,$sec_id,$subid,$lb_id,$sai,$grade);

            //student grades
            $data = array(
                'statpos'=>$_GET['statpos'],
                'edit'=>$_GET['edit'],
                'yl_id'=>$_GET['yl_id'],
                'sec_id'=>$_GET['sec_id'],
                'sy_id'=>$_GET['sy_id'],
            );

            $gradesM = $objclsPostWorkethicGrades->dbFetchStudGradesM($data);
            $gradesF = $objclsPostWorkethicGrades->dbFetchStudGradesF($data);

            $gradeMAPI = $objclsPostWorkethicGrades->getStudentBHave($gradesM);
            $gradeFAPI = $objclsPostWorkethicGrades->getStudentBHave($gradesF);

            $studentGradesAPI = array(
                'ave' => $gradeMAPI,
                'ave2' => $gradeFAPI,
                'gradesM' => $gradesM,
                'gradesF' => $gradesF,
            );
           // printa($studentGradesAPI);die;
            echo json_encode($studentGradesAPI);
            die;
        }

?>




<script>
    function postNow(sai,position,str,name)
    {
        $.ajax({
            url: "setup.php?",
            type: "GET",
            data:  {
                sai:sai,
                position:position,
                name:name,
                value:str,
                trigger: 'data',
                statpos: 'post_workethic_grades',
                action: 'edit',
                edit:<?php echo $_GET['edit']; ?>,
                yl_id:<?php echo $_GET['yl_id']; ?>,
                sec_id:<?php echo $_GET['sec_id']; ?>,
                sy_id:<?php echo $_GET['sy_id']; ?>,
                popsubject:'',
                save_in_quarter: '',
                hidemalectr: ''
            },
            success: function(data){
                console.log(data);
                document.getElementById("average"+sai).innerHTML = data['ave'][sai]['fg_q1'];
            },
            dataType: 'json'
        });

        //loadPage();
    }




    function loadPage(){

        if( window.localStorage )
        {
            if( !localStorage.getItem( 'firstLoad' ) )
            {
                localStorage[ 'firstLoad' ] = true;
                window.location.reload();
            }
            else
                localStorage.removeItem( 'firstLoad' );
        }

    }

</script>