diff --git a/TODO b/TODO
index 69db01c..0e9e95c 100755
--- a/TODO
+++ b/TODO
@@ -6,6 +6,7 @@
 * cf TODO in files
 * French template
 * Favicon
+* Dépenses du dernier mois
 
 Manage paybacks :
 =================
diff --git a/inc/Invoices.class.php b/inc/Invoices.class.php
index b7fe77e..78e1b1d 100644
--- a/inc/Invoices.class.php
+++ b/inc/Invoices.class.php
@@ -13,7 +13,7 @@
             'id'=>'key',
             'date'=>'date',
             'buyer'=>'int',
-            'amount'=>'float',
+            'amount'=>'int',
             'what'=>'text'
             );
 
@@ -44,7 +44,7 @@
         }
 
         public function getAmount() {
-            return $this->amount;
+            return (float) $this->amount / 100; // Amount is stored in cents
         }
 
         public function getWhat() {
@@ -73,7 +73,7 @@
         }
 
         public function setAmount ($amount) {
-            $this->amount = (float) $amount;
+            $this->amount = (int) ($amount * 100); // Amount is stored in cents
         }
 
         public function setWhat($what) {
@@ -87,8 +87,12 @@
 
         // Get the amount to pay by person
         // ===============================
-        public function getAmountPerPerson() {
-            return round($this->amount / count($this->users_in->get()), 2);
+        public function getAmountPerPerson($id) {
+            $guests = $this->users_in->get();
+            $guests = $guests[(int) $id];
+
+            // Amount is stored in cents
+            return round($this->amount / 100 / (count($this->users_in->get()) + $guests), 2);
         }
 
         // Maps htmlspecialchars on the class before display
@@ -111,7 +115,7 @@
 
             $this->setId($data['id']);
             $this->setWhat($data['what']);
-            $this->setAmount($data['amount']);
+            $this->amount = (int) $data['amount'];
             $this->setBuyer($data['buyer']);
 
             $this->date = DateTime::createFromFormat('Y-m-d H:i:s', $data['date']);
diff --git a/inc/Paybacks.class.php b/inc/Paybacks.class.php
index 7c4ebdd..aaf3cfc 100644
--- a/inc/Paybacks.class.php
+++ b/inc/Paybacks.class.php
@@ -9,7 +9,7 @@
             'id'=>'key',
             'date'=>'date',
             'invoice_id'=>'int',
-            'amount'=>'float',
+            'amount'=>'int',
             'from_user'=>'int',
             'to_user'=>'int'
         );
@@ -37,7 +37,7 @@
         }
 
         public function getAmount() {
-            return (float) $this->amount;
+            return (float) $this->amount / 100; // Amount is stored in cents
         }
 
         public function getFrom() {
@@ -66,7 +66,7 @@
         }
 
         public function setAmount($amount) {
-            $this->amount = (float) $amount;
+            $this->amount = (int) ($amount * 100); // Amount is stored in cents
         }
 
         public function setFrom($from) {
@@ -86,7 +86,7 @@
 
             $this->setId($data['id']);
             $this->setInvoice($data['invoice_id']);
-            $this->setAmount($data['amount']);
+            $this->amount = (int) $data['amount'];
             $this->setFrom($data['from_user']);
             $this->setTo($data['to_user']);
 
diff --git a/index.php b/index.php
index dccebba..3a79bc1 100644
--- a/index.php
+++ b/index.php
@@ -262,7 +262,7 @@
             $user->save();
             $_SESSION['current_user'] = $user->sessionStore();
 
-            header('location: index.php'.$get_redir);
+            header('location: index.php?do=password&'.$get_redir);
             exit();
             break;
 
@@ -272,6 +272,44 @@
                 $user->setId($_GET['user_id']);
                 $user->delete();
 
+                // Update concerned invoices
+                $invoices = new Invoice();
+                $invoices = $invoices->load();
+                if($invoices !== FALSE) {
+                    foreach($invoices as $invoice) {
+                        if($invoice->getBuyer() == $_GET['user_id']) {
+                            $invoice->setBuyer(0);
+                            $invoice->save();
+                        }
+                        if($invoice->getUsersIn()->inUsersIn($_GET['user_id'])) {
+                            $users_in = $invoice->getUsersIn()->get();
+                            $users_in[0] = $users_in[$_GET['user_id']];
+                            unset($users_in[$_GET['user_id']]);
+
+                            $invoice->setUsersIn($users_in);
+                            $invoice->save();
+                        }
+                    }
+                }
+
+                // Update paybacks
+                $paybacks = new Payback();
+                $paybacks = $paybacks->load(array('from_user'=>(int) $_GET['user_id']));
+                if($paybacks !== FALSE) {
+                    foreach($paybacks as $payback) {
+                        $payback->setFrom(0);
+                        $payback->save();
+                    }
+                }
+                $paybacks = $paybacks->load(array('to_user'=>(int) $_GET['user_id']));
+                if($paybacks !== FALSE) {
+                    foreach($paybacks as $payback) {
+                        $payback->setTo(0);
+                        $payback->save();
+                    }
+                }
+
+
                 // Clear the cache
                 array_map("unlink", glob(raintpl::$cache_dir."*.rtpl.php"));
 
@@ -489,10 +527,16 @@
                             $payback = new Payback();
                         }
                     }
+                    else {
+                        $payback = $payback->load(array('invoice_id'=>(int) $_GET['invoice_id'], 'to_user'=>(int) $_GET['to'], 'from_user'=>(int) $_GET['from']), true);
+
+                        if($payback == false)
+                            $payback = new Payback();
+                    }
 
                     $payback->setDate(date('i'), date('G'), date('j'), date('n'), date('Y'));
                     $payback->setInvoice($_GET['invoice_id']);
-                    $payback->setAmount($invoice->getAmount());
+                    $payback->setAmount($invoice->getAmountPerPerson($_GET['from']));
                     $payback->setFrom($_GET['from']);
                     $payback->setTo($_GET['to']);
 
@@ -525,8 +569,10 @@
 
                     $paybacks = $paybacks->load(array('to_user'=>(int) $_GET['to'], 'from_user'=> (int) $_GET['from'], 'invoice_id'=> (int) $_GET['invoice_id']));
 
-                    foreach($paybacks as $payback) {
-                        $payback->delete();
+                    if($paybacks == false) {
+                        foreach($paybacks as $payback) {
+                            $payback->delete();
+                        }
                     }
 
                     // Clear the cache
@@ -535,6 +581,7 @@
                         array_map("unlink", $tmp_files);
                     }
 
+                    exit();
                     header('location: index.php');
                     exit();
                 }
@@ -597,7 +644,7 @@
                             if($invoices_list_balances !== false) {
                                 foreach($invoices_list_balances as $invoice) {
                                     if($invoice->getUsersIn()->inUsersIn($user1->getId())) {
-                                        $balances[$user1->getId()][$user2->getId()] += $invoice->getAmountPerPerson();
+                                        $balances[$user1->getId()][$user2->getId()] += $invoice->getAmountPerPerson($user1->getId());
                                     }
                                 }
                             }
@@ -608,7 +655,7 @@
                             if($invoices_list_balances !== false) {
                                 foreach($invoices_list_balances as $invoice) {
                                     if($invoice->getUsersIn()->inUsersIn($user2->getId())) {
-                                        $balances[$user1->getId()][$user2->getId()] -= $invoice->getAmountPerPerson();
+                                        $balances[$user1->getId()][$user2->getId()] -= $invoice->getAmountPerPerson($user2->getId());
                                     }
                                 }
                             }
diff --git a/install.php b/install.php
index 20f711c..774e5c4 100644
--- a/install.php
+++ b/install.php
@@ -28,13 +28,13 @@
             $db->query('CREATE TABLE IF NOT EXISTS '.$mysql_prefix.'Users (id INT(11) NOT NULL AUTO_INCREMENT PRIMARY KEY, login VARCHAR(255), display_name VARCHAR(255), password VARCHAR(130), admin TINYINT(1), json_token VARCHAR(32)) DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci');
 
             //Create table "Invoices"
-            $db->query('CREATE TABLE IF NOT EXISTS '.$mysql_prefix.'Invoices (id INT(11) NOT NULL AUTO_INCREMENT PRIMARY KEY, date DATETIME, buyer INT(11), amount FLOAT, what TEXT) DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci');
+            $db->query('CREATE TABLE IF NOT EXISTS '.$mysql_prefix.'Invoices (id INT(11) NOT NULL AUTO_INCREMENT PRIMARY KEY, date DATETIME, buyer INT(11), amount INT(11), what TEXT) DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci');
 
             //Create table "Users_in_invoices"
             $db->query('CREATE TABLE IF NOT EXISTS '.$mysql_prefix.'Users_in_invoices (invoice_id INT(11) NOT NULL, KEY invoice_id (invoice_id), user_id INT(11), KEY user_id (user_id), guests INT(11)) DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci');
 
             //Create table "Paybacks"
-            $db->query('CREATE TABLE IF NOT EXISTS '.$mysql_prefix.'Paybacks (id INT(11) NOT NULL AUTO_INCREMENT PRIMARY KEY, date DATETIME, invoice_id INT(11), KEY invoice_id (invoice_id), amount FLOAT, from_user INT(11), to_user INT(11)) DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci');
+            $db->query('CREATE TABLE IF NOT EXISTS '.$mysql_prefix.'Paybacks (id INT(11) NOT NULL AUTO_INCREMENT PRIMARY KEY, date DATETIME, invoice_id INT(11), KEY invoice_id (invoice_id), amount INT(11), from_user INT(11), to_user INT(11)) DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci');
         } catch (PDOException $e) {
             $error = 'Unable to connect to database and create database, check your credentials and config.<br/>Error message : '.$e->getMessage().'.';
         }
diff --git a/tpl/default_en/edit_users.html b/tpl/default_en/edit_users.html
index 2f95f02..5b11168 100644
--- a/tpl/default_en/edit_users.html
+++ b/tpl/default_en/edit_users.html
@@ -58,7 +58,7 @@
 {elseif condition="$view == 'password'"}
 <h2>Edit your password</h2>
 <form method="post" action="index.php?do=password" id="edit_password_form">
-    <p><label for="password" class="label-block">New password : </label><input type="password" id="password" name="password"/></p>
+    <p><label for="password" class="label-block">New password : </label><input type="password" id="password" name="password"/> <a href="" onclick="toggle_password('password'); return false;"><img src="img/toggleVisible.png" alt="Toggle visible"/></a></p>
     <p><label for="password_confirm" class="label-block">Confirm new password : </label><input type="password" id="password_confirm" name="password_confirm"/> <a href="" onclick="toggle_password('password_confirm'); return false;"><img src="img/toggleVisible.png" alt="Toggle visible"/></a></p>
     <p class="center"><input type="submit" value="Update"/><input type="hidden" name="token" value="{$token}"</p>
 </form>
diff --git a/tpl/default_en/index.html b/tpl/default_en/index.html
index 28ac5bc..919ba76 100755
--- a/tpl/default_en/index.html
+++ b/tpl/default_en/index.html
@@ -56,16 +56,16 @@
                                 ({$value2} guest)
                             {/if}
                             - 
-                            {if condition="$paybacks[$value1->getId()] === false"}
+                            {if condition="$paybacks[$value1->getId()] === false || !in_array($key2, array_keys($paybacks[$value1->getId()]))"}
                                 {if condition="$current_user->getId() == $value1->getBuyer() || $current_user->getAdmin()"}
                                     <a href="?do=confirm_payback&amp;from={$key2}&amp;to={$value1->getBuyer()}&amp;invoice_id={$value1->getId()}" title="Confirm payback">
                                 {/if}
-                                    Remains {$value1->getAmountPerPerson()} {$currency}
+                                    Remains {$value1->getAmountPerPerson($key2)} {$currency}
                                 {if condition="$current_user->getId() == $value1->getBuyer() || $current_user->getAdmin()"}
                                     </a>
                                 {/if}
                             {else}
-                                {if condition="$paybacks[$value1->getId()][$key2]->getAmount() == $value1->getAmountPerPerson()"}
+                                {if condition="$paybacks[$value1->getId()][$key2]->getAmount() == $value1->getAmountPerPerson($key2)"}
                                     {if condition="$current_user->getId() == $value1->getBuyer() || $current_user->getAdmin()"}
                                         <a href="?do=delete_payback&amp;from={$key2}&amp;to={$value1->getBuyer()}&amp;invoice_id={$value1->getId()}" title="Delete payback">
                                     {/if}
@@ -77,7 +77,7 @@
                                     {if condition="$current_user->getId() == $value1->getBuyer() || $current_user->getAdmin()"}
                                         <a href="?do=confirm_payback&amp;from={$key2}&amp;to={$value1->getBuyer()}&amp;invoice_id={$value1->getId()}&amp;payback_id={$paybacks[$value1->getId()][$key2]->getId()}" title="Confirm payback">
                                     {/if}
-                                        Remains {$value1->getAmountPerPerson() - $paybacks[$value1->getId()][$key2]->getAmount()}{$currency}
+                                        Remains {$value1->getAmountPerPerson($key2) - $paybacks[$value1->getId()][$key2]->getAmount()}{$currency}
                                     {if condition="$current_user->getId() == $value1->getBuyer() || $current_user->getAdmin()"}
                                         </a>
                                     {/if}