라디오버튼 새로고침시 선택값이 변경되는데

고정하려면 어디를 수정해야 할까요?

고수님들의 조언부탁드립니다

<?
/* 휴온빌더 > 로컬메뉴
----------------------------------------------------------*/
if (!defined("_GNUBOARD_")) exit; // 개별 페이지 접근 불가
?>
 <style>
        section {
            display: none;}

        #tab1:checked ~ #content1,
        #tab2:checked ~ #content2 {
            display: block;}
  
  input {margin-left:15px; vertical-align:text-top;}
 </style>

 <div class="main">
 <input id="tab1" type="radio" name="tabs" checked> <!--디폴트 메뉴-->
    <label for="tab1">첫화면 구인</label>

    <input id="tab2" type="radio" name="tabs" >
    <label for="tab2">첫화면 구직</label>
 
 <section id="content1">
 <ul>
<?

 //클래스 설정
 if($i==$local_index-1)
  $local_class="active";
 else
  $local_class="normal";
  
 echo " <li class=\"$local_class\"><a href=$g4[bbs_path]/board.php?bo_table=main_guin_sn&sca=30&page=> •  공사현장</a></li>\n";
 echo " <li class=\"$local_class\"><a href=$g4[bbs_path]/board.php?bo_table=main_guin_sn&sca=31&page=> •  생산/기능</a></li>\n";
 echo " <li class=\"$local_class\"><a href=$g4[bbs_path]/board.php?bo_table=main_guin_sn&sca=32&page=> •  운전/배달</a></li>\n";
 echo " <li class=\"$local_class\"><a href=$g4[bbs_path]/board.php?bo_table=main_guin_sn&sca=33&page=> •  단순업무</a></li>\n";
 echo " <li class=\"$local_class\"><a href=$g4[bbs_path]/board.php?bo_table=main_guin_sn&sca=34&page=> •  상담/영업</a></li>\n";
 echo " <li class=\"$local_class\"><a href=$g4[bbs_path]/board.php?bo_table=main_guin_sn&sca=35&page=> •  사무/회계</a></li>\n";
 echo " <li class=\"$local_class\"><a href=$g4[bbs_path]/board.php?bo_table=main_guin_sn&sca=36&page=> •  매장관리</a></li>\n";
 echo " <li class=\"$local_class\"><a href=$g4[bbs_path]/board.php?bo_table=main_guin_sn&sca=37&page=> •  서빙/주방</a></li>\n";
 echo " <li class=\"$local_class\"><a href=$g4[bbs_path]/board.php?bo_table=main_guin_sn&sca=38&page=> •  주차/미화</a></li>\n";
 echo " <li class=\"$local_class\"><a href=$g4[bbs_path]/board.php?bo_table=main_guin_sn&sca=39&page=> •  서비스</a></li>\n";
 echo " <li class=\"$local_class\"><a href=$g4[bbs_path]/board.php?bo_table=main_guin_sn&sca=40&page=> •  카페/베이커리</a></li>\n";
 echo " <li class=\"$local_class\"><a href=$g4[bbs_path]/board.php?bo_table=main_guin_sn&sca=41&page=> •  백화점/쇼핑몰</a></li>\n";

?>
 </ul>
 </section>

 <section id="content2">
 <ul>
<?

 //클래스 설정
 if($i==$local_index-1)
  $local_class="active";
 else
  $local_class="normal";
  
 echo " <li class=\"$local_class\"><a href=$g4[bbs_path]/board.php?bo_table=main_gujig_sn&sca=30&page=> •  공사현장</a></li>\n";
 echo " <li class=\"$local_class\"><a href=$g4[bbs_path]/board.php?bo_table=main_gujig_sn&sca=31&page=> •  생산/기능</a></li>\n";
 echo " <li class=\"$local_class\"><a href=$g4[bbs_path]/board.php?bo_table=main_gujig_sn&sca=32&page=> •  운전/배달</a></li>\n";
 echo " <li class=\"$local_class\"><a href=$g4[bbs_path]/board.php?bo_table=main_gujig_sn&sca=33&page=> •  단순업무</a></li>\n";
 echo " <li class=\"$local_class\"><a href=$g4[bbs_path]/board.php?bo_table=main_gujig_sn&sca=34&page=> •  상담/영업</a></li>\n";
 echo " <li class=\"$local_class\"><a href=$g4[bbs_path]/board.php?bo_table=main_gujig_sn&sca=35&page=> •  사무/회계</a></li>\n";
 echo " <li class=\"$local_class\"><a href=$g4[bbs_path]/board.php?bo_table=main_gujig_sn&sca=36&page=> •  매장관리</a></li>\n";
 echo " <li class=\"$local_class\"><a href=$g4[bbs_path]/board.php?bo_table=main_gujig_sn&sca=37&page=> •  서빙/주방</a></li>\n";
 echo " <li class=\"$local_class\"><a href=$g4[bbs_path]/board.php?bo_table=main_gujig_sn&sca=38&page=> •  주차/미화</a></li>\n";
 echo " <li class=\"$local_class\"><a href=$g4[bbs_path]/board.php?bo_table=main_gujig_sn&sca=39&page=> •  서비스</a></li>\n";
 echo " <li class=\"$local_class\"><a href=$g4[bbs_path]/board.php?bo_table=main_gujig_sn&sca=40&page=> •  카페/베이커리</a></li>\n";
 echo " <li class=\"$local_class\"><a href=$g4[bbs_path]/board.php?bo_table=main_gujig_sn&sca=41&page=> •  백화점/쇼핑몰</a></li>\n";
 
?>
 </ul>
 </section>
 </div>