Probleme "on" php

Bonjour,
Merci d'avoir regarder mon question;
Quand je fais "Check" tourisque ou autre mots dans code j'obtiens "on" au lieur d'avoir touristique cad meme mot.

Mon code:
<table height="200" align="center" bgcolor="#D4D4D4" border="1" >
<tr>
<td > Type</td>
<td >Franchise</td>
<td >Prime annuelle</td>
<td >Prime comptant</td>
</tr>
<tr>
<td><input type="checkbox" checked disabled name="type">RC circulation</td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td ><input type="checkbox" name="type" >Vol véhicule</td>
<td><input type="text" name="franchise" size="15 " ></td>
<td><input type="text" size="15 " disabled></td>
<td><input type="text" size="15 " disabled></td>
</tr>
<tr>
<td><input type="checkbox" name="type">Incendie</td>
<td><input type="text" size="15 " disabled></td>
<td><input type="text" size="15 " disabled></td>
<td><input type="text" size="15 " disabled></td>
</tr>
<tr>
<td><input type="checkbox" name="type" >Bris de Glaces</td>
<td><input type="text" size="15 " disabled></td>
<td><input type="text" size="15 " disabled></td>
<td><input type="text" size="15 " disabled></td>
</tr>
<tr>
<td><input type="checkbox" name="type">Presonne transportees</td>
<td><input type="text" size="15 " disabled></td>
<td><input type="text" size="15 " disabled></td>
<td><input type="text" size="15 " disabled></td>
</tr>
<tr>
<td><input type="checkbox" name="type" >Speciale individuelle conducteur</td>
<td><input type="text" size="15 " disabled></td>
<td><input type="text" size="15 " disabled></td>
<td><input type="text" size="15 " disabled></td>
</tr>
<tr>
<td><input type="checkbox" name="type" >Vol radio cassette</td>
<td><input type="text" size="15 " disabled></td>
<td><input type="text" size="15 " disabled></td>
<td><input type="text" size="15 " disabled></td>
</tr>
<tr>
<td><input type="checkbox" name="type" >Dommage collisions</td>
<td><input type="text" size="15 " disabled></td>
<td><input type="text" size="15 " disabled></td>
<td><input type="text" size="15 " disabled></td>
</tr>
<tr>
<td><input type="checkbox" name="type" >Tout risques</td>
<td><input type="text" size="15 " disabled></td>
<td><input type="text" size="15 " disabled></td>
<td><input type="text" size="15 " disabled></td>
</tr>
</table>
<center> <font color="#FF0000"> Prime totale:</font><input type="text" > <input type="submit" value="Enregistrer" />

</table>
</form><table width="100" height="310" align="center" ></tABLE>

</body>

</html>

<?php

$type = $_POST['type'];
$franchise= $_POST['franchise'];
mysql_connect('localhost', 'root', '') or die("Impossible de se connecter au serveur");
mysql_select_db('assurance') or die("Base de données inexistante");
$sql = "INSERT INTO garantie (type,franchise) VALUES('$type','$franchise');";
mysql_query($sql) or die ("Erreur d'écriture dans la table");
print ("Ajouté avec succès !");
mysql_close();

?>