Cookie Help

[twan]

I am having a problem with storing a cookie from when someone votes so that they cannot vote again.  As the code is now, a person can vote for a game as many times as they please.  Here is my code I hope someone can help me. Thank you.
[code]//Puts SQL Data into an array
$query = mysql_query("SELECT * FROM games WHERE gamename LIKE '%$search%' LIMIT 1");

//Now we loop through all the data
while($ratings = mysql_fetch_array( $query ))
{

//This outputs the sites name
echo "Name: " .$ratings['gamename']."<br>";

//This calculates the sites ranking and then outputs it - rounded to 1 decimal
$current = $ratings[userrating] / $ratings[totalrating];
echo "Current Rating: " .

round($current, 2) . "<br>";

//This creates 5 links to vote a 1, 2, 3, 4, or 5 rating for each particular item
echo "Rank Me: ";
echo "<a href=".$_SERVER['PHP_SELF']."?mode=vote&voted=1&id='.$ratings[number].'><img src='control1.jpg' border='0' name='control' onMouseOver='over(0)' onMouseOut='out(0)' ></a>";
echo ("<a href=".$_SERVER['PHP_SELF']."?mode=vote&voted=2&id='.$ratings[number].'><img src='controller1.jpg' border='0' name='controller' onMouseOver='over(0), over(1)' onMouseOut='out(0), out(1)'></a>");
echo ("<a href=".$_SERVER['PHP_SELF']."?mode=vote&voted=3&id='.$ratings[number].'><img src='rate1.jpg' border='0' name='rate' onMouseOver='over(0), over(1), over(2)' onMouseOut='out(0), out(1), out(2)'></a>");
echo ("<a href=".$_SERVER['PHP_SELF']."?mode=vote&voted=4&id='.$ratings[number].'><img src='rating1.jpg' border='0' name='rating' onMouseOver='over(0), over(1), over(2), over(3)' onMouseOut='out(0), out(1), out(2), out(3)'></a>");
echo ("<a href=".$_SERVER['PHP_SELF']."?mode=vote&voted=5&id='.$ratings[number].'><img src='three1.jpg' border='0' name='three' onMouseOver='over(0), over(1), over(2), over(3), over(4)' onMouseOut='out(0), out(1), out(2), out(3), out(4)'></a>");
echo "<p>";
}
print ("$id");

//We only run this code if the user has just clicked a voting link
if ( $mode=="vote")
{

$cookie = "Mysite$id";
echo $cookie;
if(isset($_COOKIE[$cookie]))
{
Echo "Sorry You have already ranked that game <p>";
}
else
{
$month = 2592000 + time();
setcookie("Mysite$id", Voted, $month);

//Then we update the voting information by adding 1 to the total votes and adding their vote (1,2,3,etc) to the total rating
mysql_query("UPDATE games SET userrating = userrating + $voted, `totalrating` = totalrating + 1 WHERE gamename LIKE '%$search%' LIMIT 1 ");
echo "Your vote has been cast <p>";
echo $_COOKIE[$cookie];

}
}[/code]