udefineret variable

variabler ???
eks hvad er der galt her
Notice: Undefined variable: vote in on line 61
line 61 start:
if ($vote && !$HelloCheater) {                                                                                 
    mysql_connect($server,$db_user,$db_pass) or die("Database Connect Error");                             
    $query = mysql_db_query($database,"update votes set votes=votes+1 where name='$vote'") or die("Database Query Error");
    mysql_close();
    setcookie("HelloCheater", "1", time()+(3600*$cookie_time));
    header("Location: $PHP_SELF");                                                   
    exit;