var html = '', link_url = '#none', link_target = 'self';

            // 고정 배너 (등록 배너개수가 1개일 경우)
                html = '<div class="MainSlider mt20 mb20">';
                html += '           <a href="' + link_url + '"  target="_self" ><img src="/public/uploads/willbes/banner/2020/0925/banner_20210906104751.jpg" title="기술직_수강신청" style="width: 100%;"/></a>';
                html += '</div>';
    
    document.write(html);