아래에는 검색선택에서 전체가 다나오게 되는데요.
예를 들어 aaa와 bbb 그리고 ccc게시판만 선택할 수 있게 나타나게 하려면 어찌해야 할까요.?

[전체    ▼]
 -aaa-
 -bbb-
 -ccc-

위와같게 나오게 하려합니다.

<table align="center" cellpadding='0' cellspacing='0' border='0'>
<form name="mainsearch" method="get" action="javascript:fsearch_check(document.mainsearch);">
<input type='hidden' name='srows' value="10">
<input type='hidden' name='gr_id' value="">
<input type='hidden' name='sfl' value="wr_subject||wr_content">
<tr>
    <td>

<table id="open_tbl" height="29" width='100%' align="left" cellpadding='0' cellspacing='0' border='0'>
<tr>
    <td width="100%" align="left">

<table id="text_tbl" width='100%' onmousedown="body_bool=true;" class="text_tbl" cellpadding='0' cellspacing='0' border='0'>
<tr height="20">
<td width="5"></td>
<td id="select_text" width="60">
전체
</td>
<td width="11" align="center"><img src='<?=$g4[path]?>/arrow.gif' align='absmiddle'></td>
<td width="5"></td>
</tr>
</table>

<table id="open_bar" class="open_div" cellpadding='0' cellspacing='0' border='0'>
<tr>
<td onclick="select_menu('',this.innerHTML,'0')">전체</td>
</tr>
<?
//그룹을 구함
$sql = mysql_query(" select gr_id, gr_subject from $g4[group_table] order by gr_id asc ");
for ($i=0; $row=mysql_fetch_array($sql); $i++) {
echo"
<tr>
<td onclick=\"select_menu('$row[gr_id]',this.innerHTML,".($i+1).")\">$row[gr_subject]</td>
</tr>
";

//gr_id 가 있으면 체크
if ($row[gr_id] == $_GET[gr_id]) {
$select_check = "
<script language='javascript'>
select_menu('$row[gr_id]','$row[gr_subject]',".($i+1).");
</script>
";
}
}
?>
</table>

    </td>
</tr>
</table>

    </td>
<td width="5"></td>
<td >
<input type='text' name='stx' class="eds" value="<?=$_GET[stx]?>" size="39">
</td>
<td width="9"></td>
<td>
&nbsp;&nbsp;&nbsp;<input type='submit' class="eds" value=' 검색 '>
</td>
</tr>
<input type='hidden' name='sop' value="or">
</form>
</table>

<script type="text/javascript" src="<?=$g4[path]?>/rollover.js"></script>
<!-- gr_id 가 있으면 -->
<?=$select_check?>