if ($marks == '') {
        $ct1 = '-';
        $ct2 = '-';
        $ia = '-';
        $ms = '-';
        $es = '-';
        $g = '-';
    } else {
        $marks = $marks->fetch_object();
        $ct1 = $marks->ct1;
        $ct2 = $marks->ct2;
        $ia = $marks->ct3;
        $ms = $marks->midsem;
        $es = $marks->endsem;
        $sem = new Semester();
        $g = $marks->pointer != NULL && $sem->isResultPublished() ? $m->getGradeFromPointer($marks->pointer) : '-';
        unset($marks);
        unset($m);
        unset($sem);
    }
    ?>
                                        	</td>
                                        	<td><?php 
    echo $ct1 != NULL ? $ct1 == -200 ? 'AB' : $ct1 : '-';
    ?>
</td>
                                        	<td><?php 
    echo $ct2 != NULL ? $ct2 == -200 ? 'AB' : $ct2 : '-';
    ?>
</td>
                                        	<td><?php