PHP file - try to edit it!
<h1><span><?= $lang_common['User list'] ?></span></h1>
<div class="blockform">
<form id="userlist" method="get" action="userlist.php">
<div class="infldset">
<select name="show_group">
<option value="-1"<?php if ($show_group == -1) {
echo ' selected="selected"';
} ?>><?= $lang_ul['All users'] ?></option>
<?php
foreach ($result as $cur_group) {
if ($cur_group['g_id'] == $show_group) {
echo "\n\t\t" . '<option value="' . $cur_group['g_id'] . '" selected="selected">'
. htmlspecialchars($cur_group['g_title']) . '</option>';
} else {
echo "\n\t\t" . '<option value="' . $cur_group['g_id'] . '">'
. htmlspecialchars($cur_group['g_title']) . '</option>';
}
}
?>
</select>
<p class="clearb"><?= $lang_ul['User search info'] ?></p>
</div>
</form>
</div>