여기서 그룹제외 만들려면 어떻게해야햐요

<?
$skin = "dim-gray"; //스킨설정유효값 1,2,3 타입
//타입1 -> dim-gray,deep-sky-blue,black,orange-red,white-smoke,yellow-green
//타입2 -> dim-gray_b,deep-sky-blue_b,black_b,orange-red_b,white-smoke_b,yellow-green_b
//타입3 -> dim-gray_c,deep-sky-blue_c,black_c,orange-red_c,white-smoke_c,yellow-green_c
$background = "FAFAFA"; //배경색상
$font2 = "A9A9A9"; //2차메뉴색상

$g4_board = array();

$g4_board_select = "*";
$g4_board_sql = " select $g4_board_select from $g4[board_table] order by bo_order_search, gr_id, bo_table ";
$g4_board_result = mysql_query($g4_board_sql);
for($i=0; $g4_board_row = mysql_fetch_array($g4_board_result); $i++){
$g4_board[$i] = $g4_board_row;
}

$g4_group = array();
$g4_group_select = "gr_id, gr_subject, gr_admin, gr_use_access, gr_1";
$g4_group_sql = "select $g4_group_select from $g4[group_table] order by gr_1 asc";
$g4_group_result = mysql_query($g4_group_sql);
for($i=0; $g4_group_row = mysql_fetch_array($g4_group_result); $i++)
$g4_group[$i] = $g4_group_row;

for ($i=0; $i<count($g4_group); $i++){
$m_menu[$i] = $g4_group[$i][gr_subject];
$m_menu_s[$i] = $g4_group[$i][gr_subject];
$m_menu_h[$i] = "$g4[path]/index.php?gr_id={$g4_group[$i][gr_id]}";
$group_id[$i] = $g4_group[$i][gr_id];

$gr_bo_c[$i] = 0;
}

$mmc = $i;

for ($i=0; $i<count($g4_board); $i++) {
for($j=0; $j<$mmc; $j++){
if($g4_board[$i][gr_id] == $group_id[$j]){
$s_href[$j][$gr_bo_c[$j]] = "$g4[bbs_path]/board.php?bo_table={$g4_board[$i][bo_table]}";
$s_menu[$j][$gr_bo_c[$j]] = $g4_board[$i][bo_subject];

$gr_bo_c[$j]++;
}
}
}

$smc = count($g4_board);

if($bo_table){
for($gr=0; $gr<$smc; $gr++){
if($bo_table == $g4_board[$gr]){
$gr_id = $g4_board[$gr][gr_id];
break;
}
}
}

?>


1. 여기서 그룹제외를할수있해주세요.
여기서 그룹명을 넣으면 안나오게

2. 아니면 특정회원만 그룹메뉴를 볼수있게 못하나요?