function FindChildren($parent, $level)
{
global $flag, $data, $tree_text, $tree_value, $tree_level, $undef_flag;
for ($i = 0; $i < count($data); $i++) {
if ($data[$i]['reference'] == $parent and !isset($flag[$i])) {
$tree_value[] = $data[$i]['value'];
$tree_text[] = aux::mkIndent($level) . $data[$i]['text'];
$tree_level[] = $level;
$flag[$i] = true;
aux::FindChildren($data[$i]['value'], $level + 1);
}
}
}
