Php upload image

Salut a tous j ai un probleme avec mon:
move_uploaded_file
je veut simplement uploader 3 images avec une page de formulaire:



<input type="file" name="photo_principale" size="30" ENCTYPE="multipart/form-data">
<font face="Verdana, Arial, Helvetica, sans-serif" size="1">Extension
de la photo principale :<br>
</font>
<input type="radio" name="extp" value=".gif">
<font face="Verdana, Arial, Helvetica, sans-serif" size="1">gif</font></label>
<br>
<label>
<input type="radio" name="extp" value=".jpg">
<font face="Verdana, Arial, Helvetica, sans-serif" size="1">jpeg</font></label>
<p align="justify"><font face="Verdana, Arial, Helvetica, sans-serif" size="1"><br>
</font> <font face="Verdana, Arial, Helvetica, sans-serif" size="1">Porte
folio n°1:<br>
</font>
<input type="file" name="photo_1" size="30" ENCTYPE="multipart/form-data">
<font face="Verdana, Arial, Helvetica, sans-serif" size="1">Extension
de la premiere photo porte folio :<br>
</font>
<input type="radio" name="ext1" value=".gif">
<font face="Verdana, Arial, Helvetica, sans-serif" size="1">gif</font></label>
<br>
<label>
<input type="radio" name="ext1" value=".jpg">
<font face="Verdana, Arial, Helvetica, sans-serif" size="1">jpeg</font></label>
<p align="justify"><font face="Verdana, Arial, Helvetica, sans-serif" size="1"><br>
</font> <font face="Verdana, Arial, Helvetica, sans-serif" size="1">Porte
folio n°2:<br>
</font>
<input type="file" name="photo_2" size="30" ENCTYPE="multipart/form-data">
<font face="Verdana, Arial, Helvetica, sans-serif" size="1">Extension
de la seconde photo porte folio :<br>
</font>
<input type="radio" name="ext2" value=".gif">
<font face="Verdana, Arial, Helvetica, sans-serif" size="1">gif</font></label>
<br>
<label>
<input type="radio" name="ext2" value=".jpg">
<font face="Verdana, Arial, Helvetica, sans-serif" size="1">jpeg</font></label>
<p align="justify"><font size="1" face="Verdana, Arial, Helvetica, sans-serif"><br>
</font> <font face="Verdana, Arial, Helvetica, sans-serif" size="1">Porte
folio n°3:</font><font face="Verdana, Arial, Helvetica, sans-serif" size="1"><br>
</font>
<input type="file" name="photo_3" size="30" ENCTYPE="multipart/form-data">
<font face="Verdana, Arial, Helvetica, sans-serif" size="1">Extension
de la troisieme photo porte folio :<br>
</font>
<input type="radio" name="ext3" value=".gif">
<font face="Verdana, Arial, Helvetica, sans-serif" size="1">gif</font></label>
<br>
<label>
<input type="radio" name="ext3" value=".jpg">
<font face="Verdana, Arial, Helvetica, sans-serif" size="1">jpeg</font></label>
<p align="justify"><font face="Verdana, Arial, Helvetica, sans-serif" size="1"><br>
</font>


ET MA PAGE DE VERIFICATION EN PHP:



if ($_FILES["photo_principale"]["name"]!="" )
{
$newnamepp =($titre.principale.$extp);
move_uploaded_file($_FILES["photo_principale"]["tmp_name"],
"/repertoire/".$newnamep);
}
if ($_FILES["photo_1"]["name"]!="" )
{
$newnamepp =($titre.photo1.$ext1);
move_uploaded_file($_FILES["photo_1"]["tmp_name"],
"/repertoire/".$newnamep);
}
if ($_FILES["photo_2"]["name"]!="" )
{
$newnamepp =($titre.photo2.$ext2);
move_uploaded_file($_FILES["photo_2"]["tmp_name"],
"/repertoire/".$newnamep);
}
if ($_FILES["photo_3"]["name"]!="" )
{
$newnamepp =($titre.photo3.$ext3);
move_uploaded_file($_FILES["photo_3"]["tmp_name"],
"/repertoire/".$newnamep);
}



J ai ensuite modifié le chmod sur repertoire que j ai mis a 777 mais lorsque je veut uploader une image il me balance cette erreur (Pour chaque image):


Warning: move_uploaded_file(/repertoire/): failed to open stream: Permission denied in /home/sites/site14/web/annuaire/verif.php on line 30

Warning: move_uploaded_file(): Unable to move '/tmp/phplvhftp' to '/repertoire/' in /home/sites/site14/web/annuaire/verif.php on line 30

Warning: Cannot modify header information - headers already sent by (output started at /home/sites/site14/web/annuaire/verif.php:30) in /home/sites/site14/web/annuaire/verif.php on line 52

Je cherche l erreur depuis ce matin 8h mais rien. Merci d'avance.