Problème script php, heeeelp plzzz

Bonjour,
je réalise un site web dynamique et lors de la conception d'un sondage en php, j'ai rencontré un 'tit problème
mon code est le suivant :
<?php

$query = mysql_query("SELECT * FROM 'poll' ORDER BY 'id' DESC LIMIT 1");

$rows = mysql_num_rows($query);


if($rows > 0){
$poll = mysql_fetch_array($query);

$title = $poll['name'];

} else {
$title = 'No Poll Yet';

}

$query = mysql_query("SELECT COUNT('id') as hits FROM 'responses' GROUP BY 'qid'");

while($row = mysql_fetch_array($query)){
$me[] = $row['hits'];

}
$max = max($me);


$query = mysql_query("SELECT 'questions'.'pid' FROM 'responses', 'questions' WHERE 'responses'.'qid'='questions'.'id' AND 'responses'.'ip'='".$_SERVER['REMOTE_ADDR']."' AND pid='".$poll['id']."'");

if(mysql_num_rows($query) > 0){
$total = mysql_query("SELECT 'questions'.'pid' FROM 'responses', 'questions' WHERE 'responses'.'qid'='questions'.'id' AND pid='".$poll['id']."'");
$total = mysql_num_rows($total);
?>
<style type="text/css">
<!--
.maintable {
font-size: x-small;
font-family: "Times New Roman", Times, serif;
background-color: #F00;
}
.maintable tr .title {
font-size: 12px;
}
.maintable tr td form .question tr td {
font-size: 12px;
}
-->
</style>

<table width="127" border="0" align="center" cellpadding="0" cellspacing="0" class="maintable">
<tr>
<td width="127" align="center" valign="top" class="title"><?php echo $title; ?></td>
</tr>
<?php
$query = mysql_query("SELECT * FROM 'questions' WHERE 'pid'='".$poll['id']."' ORDER BY 'question'");
$questions = mysql_num_rows($query);
if($questions > 0){
?>
<tr>
<td valign="top" style="padding: 5px; font-size: 12px;">
<table width="100%" cellpadding="0" cellspacing="0" border="0" class="question">
<?php
while($question = mysql_fetch_array($query)){
$responses = mysql_query("SELECT count(id) as total FROM 'responses' WHERE qid='".$question['id']."'");
$responses = mysql_fetch_array($responses);

if($total > 0 && $responses['total'] > 0){
$percentage = round(($responses['total'] / $max) * 100);
} else {
$percentage = 0;
}

$percentage2 = 100 - $percentage;
?>
<tr>
<td valign="top" nowrap="nowrap"><?php echo $question['question']; ?></td>
<td valign="top" height="10" width="100%" style="padding: 0px 10px; font-size: small; font-family: 'Times New Roman', Times, serif;">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td valign="top" width="<?php echo $percentage; ?>%" <?php if($percentage > 0){?>style="background: url('images/bar.jpg') repeat-x;"<?php } ?>><img src="images/dot.gif" width="1" height="19" /></td>
<td valign="top" width="<?php echo $percentage2; ?>%"></td>
</tr>
</table>
</td>
<td valign="top"><?php echo $responses['total']; ?></td>
</tr>
<?php
}
?>
<tr>
<td valign="top" colspan="3" align="center" style="padding: 10px 0px 0px 0px; font-size: 12px;">Total Votes: <?php echo $total;
?></td>
</tr>
</table>
</td>
</tr>
<?php
}
?>
</table>
<?php
} else {
?>
<table width="127" cellpadding="0" cellspacing="0" border="0" class="maintable" align="center">
<tr>
<td width="127" align="center" valign="top" class="title"><?php echo $title; ?></td>
</tr>
<?php
$query = mysql_query("SELECT * FROM 'questions' WHERE 'pid'='".$poll['id']."' ORDER BY 'question'");
$questions = mysql_num_rows($query);
if($questions > 0){
?>
<tr>
<td valign="top" style="padding: 5px; font-size: 12px;">
<form name="poll" method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
<table width="100%" cellpadding="0" cellspacing="0" border="0" class="question">
<?php
if(isset($error)){
?>
<tr>
<td valign="top" colspan="2" align="center" style="padding: 0px 0px 10px 0px;"><?php echo $error; ?></td>
</tr>
<?php
}
?>
<?php
while($question = mysql_fetch_array($query)){
?>
<tr>
<td valign="top" style="padding: 0px 10px 0px 0px;"><input type="radio" name="questions" value="<?php echo $question['id']; ?>" /></td>
<td valign="top" width="100%"><?php echo $question['question']; ?></td>
</tr>
<?php
}
?>
<tr>
<td valign="top" colspan="2" align="center" style="padding: 10px 0px 0px 0px;"><input type="submit" name="vote" value="Submit Vote" /><br /></td>
</tr>
</table>
</form>
</td>
</tr>
<?php
}
?>
</table>
<span class="maintable"></span>
<?php
}
?>
<table width="127" cellpadding="0" cellspacing="0" border="0" align="center">
<tr>
<td width="127" align="right" valign="top"> </td>
</tr>
</table>

j'ai bien crée mes tables mysql, tout marche sauf que j'ai ce message:

Notice: Undefined variable: me in D:\EasyPHP5.3.0\www\poll.php on line 24

Warning: max() [function.max]: When only one parameter is given, it must be an array in D:\EasyPHP5.3.0\www\poll.php on line 24
merci de bien vouloir m'aider :)