probléme récuperation valeur d'un input

<div align="center" style="background-color:#fedcba;">  
  <form method="post" action="./ajout/ajoutesthetique.php" > <!-- action="./ajout/ajoutesthetique.php"-->
    <label>Cr&eacute;ation d&rsquo;une nouvelle prestation
    </label>  <br />    
    <div class="ligne">  
      <span class="libelle">
        <label for="Prestation">Prestation:
        </label>
      </span>  
      <input name="Prestation" id="Prestation" style="border:#ff0000;" size="100" maxlength="100" type="text"  />  
    </div>  
    <div class="ligne">  
      <span class="libelle">
        <label for="Temps">Dur&eacute;e&nbsp;:
        </label>
      </span>  
      <input name="Temps" id="Temps" style="border:#ff0000;" size="15" maxlength="30" type="text"  />  
    </div>  
    <div class="ligne">  
      <span class="libelle">
        <label for="Tarif">Prix&nbsp;:
        </label>
      </span>  
      <input name="Tarif" id="Tarif" style="border:#ff0000;" size="15" maxlength="30" type="text" />  
    </div>  
    <div class="ligne">  
     <!-- <a  >  -->
         <input type="submit" value="bouton classique">
        <input onClick="this.form.submit();" id="AJOUTER" name="AJOUTER" value="AJOUTER" type="button" /><!-- </a>  --> 
        <input type="image" onClick="this.form.submit();" src="http://www.mytextile.in/files/images/button-submit.gif" alt="Submit"  />
    </div>  
  </form>
</div>

<?php 
echo '<pre>'; 
print_r($_GET);
print_r($_POST);
//exit;

@mysql_connect('localhost','root','');
@mysql_select_db('base');

$Prestation = htmlentities(mysql_real_escape_string($_POST['Prestation'])); 
$Temps = htmlentities(mysql_real_escape_string($_POST['Temps']));
$Tarif = htmlentities(mysql_real_escape_string($_POST['Tarif']));
$sql="INSERT INTO `tarifsesthetique` (`id`, `prestation`, `temps`, `tarifs`) VALUES (NULL, '".$Prestation."', '".$Temps."', '".$Tarif."')";

 
//require_once('../includes/bd.inc.php'); 
//require_once('../includes/magicquotes.inc.php'); 


if(@mysql_query($sql)){
echo 'insert reussi<br>';
}else{
echo 'raté<br>';
} 



echo '<div style="background-color:#fedcba;">';

$sql2 = 'SELECT * 

FROM  `tarifsesthetique` order by id desc 
LIMIT 0 , 10';

$q=@mysql_query($sql2);

while($r=mysql_fetch_array($q)){
echo $r['id'].'-'.$r['id'].'-'.$r['prestation'].'-'.$r['temps'].'-'.$r['tarif'].'<br>';
}

echo '</div>';
//$url = "http://".$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']; 
//print_r(parse_url($url)); 
//echo parse_url($url, PHP_URL_PATH); 
//echo $NumAuto, " ", $CodeCom; 
//header("Location: ../crea/creaesthetique.php"); 
?>