diff --git a/studs.php b/studs.php
index deba752..12aa4e2 100644
--- a/studs.php
+++ b/studs.php
@@ -535,7 +535,10 @@ echo '</tbody>'."\n".'<tfoot>'."\n";
 
 // Affichage des différentes sommes des colonnes existantes
 echo '<tr>'."\n";
-echo '<td align="right">'. _("Addition") .'</td>'."\n";
+echo '<td align="right">';
+// si on a plus de 8 colonnes, on affiche un second bouton "valider mes choix"
+echo ($nbcolonnes>8) ?'<input type="button" name="boutonp" value="Valider mes choix" class="btn btn-success btn-mini" style="margin-right:50px">' : "";
+echo   _("Addition") .'</td>'."\n";
 
 for ($i=0; $i < $nbcolonnes; $i++) {
   if (isset($somme[$i]) === true) {
@@ -646,7 +649,7 @@ echo _("Name") .' : ';
 echo '<input type="text" name="commentuser" maxlength="64" value="'.$nom.'" /><br>'."\n";
 
 echo '<textarea name="comment" rows="2" cols="40"></textarea>'."\n";
-echo '<input type="image" name="ajoutcomment" value="Ajouter un commentaire" src="images/accept.png" alt="Valider"><br>'."\n";
+echo '<input type="button" name="ajoutcomment" value="Ajouter un commentaire" class="btn btn-success" alt="Valider"><br>'."\n";
 echo '</form>'."\n";
 // Focus javascript sur la case de texte du formulaire
 echo '<script type="text/javascript">'."\n" . 'document.formulaire.commentuser.focus();'."\n" . '</script>'."\n";
diff --git a/variables.php.template b/variables.php.template
index 136d606..c48cc47 100644
--- a/variables.php.template
+++ b/variables.php.template
@@ -89,7 +89,7 @@ if (@file_exists('variables.local.php')) {
 }
 
 // Studs version
-const STUDS_VERSION = 0.6.6;
+const STUDS_VERSION = 0.7;
 
 // Do not edit the following
 $ALLOWED_LANGUAGES = array('fr_FR' => 'french',