diff --git a/databaseOperations.php b/databaseOperations.php
index 8cf6d00..861ea2d 100755
--- a/databaseOperations.php
+++ b/databaseOperations.php
@@ -166,7 +166,7 @@ function getCategoriesForOneEvent($db, $eventId)
 {
     try
     {
-        $request = $db->prepare('SELECT * FROM eventCategorie NATURAL JOIN categorie NATURAL JOIN sous_categorie ORDER BY sous_cat_tab ASC, sous_cat_id ASC WHERE event_id = ?');
+        $request = $db->prepare('SELECT * FROM eventCategorie NATURAL JOIN categorie NATURAL JOIN sous_categorie WHERE event_id=?');
         $request->execute(array($id));
         $result = $request->fetch();
         $request->closeCursor();
diff --git a/editEvent.php b/editEvent.php
new file mode 100644
index 0000000..dadad09
--- /dev/null
+++ b/editEvent.php
@@ -0,0 +1,129 @@
+<?php
+/** /
+require_once('./CAS-1.3.4/CAS.php');
+phpCAS::client(CAS_VERSION_2_0, 'sso-cas.univ-rennes1.fr', 443, '', false);
+phpCAS::setNoCasServerValidation();
+phpCAS::forceAuthentication();
+$uid = phpCAS::getUser();
+/**/
+
+include_once('databaseOperations.php');
+include('datetimeOperations.php');
+$db = connect();
+
+if(!isset($_GET['id']) || !is_numeric($_GET['id']))
+header('Location:./');
+
+$id = htmlspecialchars($_GET['id']);
+
+$event = getOneEvent($db, $id);
+?>
+
+<!DOCTYPE html>
+<html>
+<head>
+  <title>Kiwi Calendar : Ajouter un évènement</title>
+  <meta charset="utf-8" />
+  <link rel="stylesheet" href="./main.css" />
+  <link rel="stylesheet" href="./event.css" />
+  <link href="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.2.2/css/bootstrap-combined.min.css" rel="stylesheet">
+  <link rel="stylesheet" type="text/css" media="screen"
+  href="http://tarruda.github.com/bootstrap-datetimepicker/assets/css/bootstrap-datetimepicker.min.css">
+  <link rel="icon" type="image/png" href="favicon.png" />
+  <link rel="stylesheet" href="./addEvent.css" />
+  <!--[if IE]><link rel="shortcut icon" type="image/x-icon" href="favicon.ico" /><![endif]-->
+</head>
+<body>
+  <?php include('header.php'); ?>
+
+  <div id="descEvent">
+    <h1>Modifier un Évènement</h1>
+
+    <form id="eventForm" name="eventForm" method="post" action="eventAdded.php" onsubmit="return verifyCheckbox();">
+      <div id="left">Titre :</div>
+      <input type="text" name="title" value="<?php echo $event["event_title"]; ?>" required>
+      <br>
+      <div id="left">Catégories :</div>
+      <div id="checkboxGrp">
+        <?php
+        $cats = getCategoriesNames($db);
+        echo 'TODO!!!'.getCategoriesForOneEvent($db, $id)['cat_title'];
+        for ($i=0; $i<count($cats); $i++) {
+          echo "<input type=\"checkbox\" class=\"checkboxRequired\" name=\"chk_group[]\" value=\"".$cats[$i][0]."\" />".$cats[$i][1]." ";
+        }
+        ?>
+      </div>
+      <br>
+      <div id="left">Adresse :</div>
+      <input type="text" name="address" value="<?php echo $event["event_localisation"];?>" required>
+      <br>
+      <div id="left">Date de début :</div>
+      <div id="datetimepicker" class="input-append date">
+        <input type="text" name="dtstart"  value="<?php echo $event["event_dtstart"]; ?>"  required></input>
+        <span class="add-on">
+          <i data-time-icon="icon-time" data-date-icon="icon-calendar"></i>
+        </span>
+      </div>
+      <br>
+      <div id="left">Date de fin :</div>
+      <div id="datetimepicker2" class="input-append date">
+        <input type="text" name="dtend"  value="<?php echo $event["event_dtend"];?>" required></input>
+        <span class="add-on">
+          <i data-time-icon="icon-time" data-date-icon="icon-calendar"></i>
+        </span>
+      </div>
+      <br>
+      <div id="left">Description de l'évènement :</div>
+      <textarea name="description" rows="4" cols="50" form="eventForm">
+<?php echo $event["event_description"];?>
+      </textarea>
+      <br>
+      <div id="left">Site de l'évènement :</div>
+      <input type="url" value="<?php echo $event["event_site"];?>"  name="site">
+      <br>
+      <div id="left">Image de l'évènement :</div>
+      <input type="url"  value="<?php echo $event["event_urlImage"];?>"  name="urlImage">
+      <br>
+      <div id="left">Contact :</div>
+      <input type="text"  value="<?php echo $event["event_contact"];?>" name="contact">
+      <br>
+      <div id="buttonDiv"><button id="submit">Modifier l'évènement !</button></div>
+    </form>
+
+
+    <script type="text/javascript"
+    src="http://cdnjs.cloudflare.com/ajax/libs/jquery/1.8.3/jquery.min.js">
+    </script>
+    <script type="text/javascript"
+    src="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.2.2/js/bootstrap.min.js">
+    </script>
+    <script type="text/javascript"
+    src="http://tarruda.github.com/bootstrap-datetimepicker/assets/js/bootstrap-datetimepicker.min.js">
+    </script>
+    <script type="text/javascript"
+    src="http://tarruda.github.com/bootstrap-datetimepicker/assets/js/bootstrap-datetimepicker.pt-BR.js">
+    </script>
+    <script type="text/javascript">
+    $('#datetimepicker').datetimepicker({
+      format: 'dd/MM/yyyy hh:mm:ss',
+      language: 'fr_FR'
+    });
+    $('#datetimepicker2').datetimepicker({
+      format: 'dd/MM/yyyy hh:mm:ss',
+      language: 'fr_FR'
+    });
+
+
+    var verifyCheckbox = function () {
+      var checkboxes = $('#checkboxGrp');
+      var inputs = checkboxes.find('input');
+      for(var i = 0; i < inputs.length; i++)
+        if(inputs[i].checked)
+          return true;
+      return false;
+    }
+    </script>
+
+  </div>
+</body>
+</html>
diff --git a/event.css b/event.css
index ade036c..a8e331a 100755
--- a/event.css
+++ b/event.css
@@ -3,6 +3,12 @@ body
     padding:0px;
 }
 
+h1 img
+{
+  width:18px;
+  height:18px;
+}
+
 #descEvent
 {
   margin-top: 150px;
diff --git a/event.php b/event.php
index d3a698a..eaeefa8 100755
--- a/event.php
+++ b/event.php
@@ -4,7 +4,7 @@ include('datetimeOperations.php');
 $db = connect();
 
 if(!isset($_GET['id']) || !is_numeric($_GET['id']))
-    header('Location:./');
+header('Location:./');
 
 $id = htmlspecialchars($_GET['id']);
 
@@ -15,52 +15,54 @@ $dtend = strtotime($event['event_dtend']);
 
 <!DOCTYPE html>
 <html>
-    <head>
-        <title>KiWi calendar : <?php echo $event["event_title"]; ?></title>
-        <meta charset="utf-8" />
-        <link rel="stylesheet" href="./main.css" />
-        <link rel="stylesheet" href="./event.css" />
-        <link rel="icon" type="image/png" href="favicon.png" />
-        <!--[if IE]><link rel="shortcut icon" type="image/x-icon" href="favicon.ico" /><![endif]-->
-    </head>
-    <body>
-        <?php include('header.php'); ?>
-        <div id="descEvent">
-            <h1><?php echo $event["event_title"]; ?></h1>
+<head>
+  <title>KiWi calendar : <?php echo $event["event_title"]; ?></title>
+  <meta charset="utf-8" />
+  <link rel="stylesheet" href="./main.css" />
+  <link rel="stylesheet" href="./event.css" />
+  <link rel="icon" type="image/png" href="favicon.png" />
+  <!--[if IE]><link rel="shortcut icon" type="image/x-icon" href="favicon.ico" /><![endif]-->
+</head>
+<body>
+  <?php include('header.php'); ?>
+  <div id="descEvent">
+    <h1><?php echo $event["event_title"]; ?>
+      <a href="<?php echo 'editEvent.php?id='.$_GET['id']; ?>"><img src="images/edit.png"/></a></h1>
 
-            <h2>Date et lieu</h2>
-            <div id="dateheure">
-                <?php echo htmlentities(printableDateTime($dtstart, $dtend)); ?>
-            </div>
-            <?php
-            echo '<div id="lieu">'.$event["event_localisation"].'</div>';
-            $url = 'https://nominatim.openstreetmap.org/search?format=json&q='.urlencode($event["event_localisation"]);
-            $obj = json_decode(file_get_contents($url), true);
-            $lat = $obj[0]["lat"];
-            $lng = $obj[0]["lon"];
-            $urlFrame = 'http://www.openstreetmap.org/export/embed.html?bbox='.$lng.','.$lat.','.$lng.','.$lat.'&layer=mapnik&floor';
-            echo '<iframe frameborder="0" scrolling="no"
-                  marginheight="0" marginwidth="0"
-            src="'.$urlFrame.'" style="width:100%;height:500px;margin-bottom:-30px;"></iframe>';
 
-            if(isset($event["event_urlImage"]) || isset($event["event_description"]))
-                echo '<div id="descDiv" style="margin-top:30px;"><h2>Description</h2></div>';
-            if(isset($event["event_urlImage"]))
-                echo '<div id="image"><img src="'.$event["event_urlImage"].'" width="100%"></div>';
-            if(isset($event["event_description"]))
-                echo '<div id="description">'.$event["event_description"].'</div>';
+      <h2>Date et lieu</h2>
+      <div id="dateheure">
+        <?php echo htmlentities(printableDateTime($dtstart, $dtend)); ?>
+      </div>
+      <?php
+      echo '<div id="lieu">'.$event["event_localisation"].'</div>';
+      $url = 'https://nominatim.openstreetmap.org/search?format=json&q='.urlencode($event["event_localisation"]);
+      $obj = json_decode(file_get_contents($url), true);
+      $lat = $obj[0]["lat"];
+      $lng = $obj[0]["lon"];
+      $urlFrame = 'http://www.openstreetmap.org/export/embed.html?bbox='.$lng.','.$lat.','.$lng.','.$lat.'&layer=mapnik&floor';
+      echo '<iframe frameborder="0" scrolling="no"
+      marginheight="0" marginwidth="0"
+      src="'.$urlFrame.'" style="width:100%;height:500px;margin-bottom:-30px;"></iframe>';
 
-            if(isset($event["event_site"]) || isset($event["event_contact"]))
-                echo '<h2>Informations</h2>';
-            if(isset($event["event_site"]))
-                echo '<div id="URL">URL : <a href="'.$event["event_site"].'">'.$event["event_site"].'</a></div>';
-            if(isset($event["event_contact"]))
-                echo '<div id="Contact">Contact : <a href="mailto:'.$event["event_contact"].'">'.$event["event_contact"].'</a></div>';
-            ?>
-        </div>
+      if(isset($event["event_urlImage"]) || isset($event["event_description"]))
+      echo '<div id="descDiv" style="margin-top:30px;"><h2>Description</h2></div>';
+      if(isset($event["event_urlImage"]))
+      echo '<div id="image"><img src="'.$event["event_urlImage"].'" width="100%"></div>';
+      if(isset($event["event_description"]))
+      echo '<div id="description">'.$event["event_description"].'</div>';
 
-        <!-- bring in the google maps library -->
-        <script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
+      if(isset($event["event_site"]) || isset($event["event_contact"]))
+      echo '<h2>Informations</h2>';
+      if(isset($event["event_site"]))
+      echo '<div id="URL">URL : <a href="'.$event["event_site"].'">'.$event["event_site"].'</a></div>';
+      if(isset($event["event_contact"]))
+      echo '<div id="Contact">Contact : <a href="mailto:'.$event["event_contact"].'">'.$event["event_contact"].'</a></div>';
+      ?>
+    </div>
 
-    </body>
-</html>
+    <!-- bring in the google maps library -->
+    <script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
+
+  </body>
+  </html>
diff --git a/images/edit.png b/images/edit.png
new file mode 100644
index 0000000..9efbaae
Binary files /dev/null and b/images/edit.png differ
