úprava scriptu na odosielanie mailu

<?php

                

if(isset($_POST['sub'])){
    if($_POST['to']=="1"){$to="meno@gmail.com";
//$result=mysql_query("SELECT * FROM your_table ORDER BY id") or die ("Spojenie s databázou bolo neúspešné");
//while ($row=mysql_fetch_array($result))
//{echo $row["email"].",";}echo"opsidiam@gmail.com";
}else{$to=$_POST['to'];}

$from="E-Mailer@e-mailer.sk";
$name="meno@gmail.com";
$subject="Mailer";
$mm="";
$result=mysql_query("SELECT * FROM your_table ORDER BY id") or die ("Spojenie s databázou bolo neúspešné");
 while ($row=mysql_fetch_array($result))
 {$mm= $row["email"].",".$mm;}
$mn= $mm."meno@gmail.com";
$message= "Ahoj";
$headers = 'From: '.$from. "\r\n" .
    'Reply-To: '.$from . "\r\n" .
    'X-Mailer: PHP/' . phpversion();
$header .= $headers.'MIME-Version: 1.0' . "\r\n";
$header .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n";


$ret=mail($to, $subject, $message, $header, "meno@gmail.com");
if($ret==true)
echo "<br /> Mail bol odoslaný!!!! <br />".$message.$_POST['to'];
else
echo "<br /> Mail nebol odoslaný!!!! Prosím kontaktujťe správcu alebo tvorcu opsidiam@gmail.com";
}
?>