function getList($pid=0,&$result=array(),$spac=0){

$spac = $spac + 2;

$sql = "SELECT * FROM news_type WHERE pid=$pid";

$res = @mysql_query($sql);

while($row = mysql_fetch_assoc($res)){

$row['catename'] = str_repeat('  ',$spac).'|--'.$row['catename'];

$result[] = $row;

getList($row['id'],$result,$spac);

}

return $result;

}

function displayCate($pid=0,$selected=1){

$rs = getList($pid);

$str='';

$str.= "<select name='pid' class='dfinput'>";

foreach($rs as $key => $val){

if($val['id'] == $selected){

$sellectedstr ="selected";

}

else{$selectedstr =$val['id'];}

$str.= "<option {$selectedstr}>{$val['catename']}</option>";

}

}