diff --git a/boffice/agenda.php b/boffice/agenda.php
index b3d0b09..bd34964 100644
--- a/boffice/agenda.php
+++ b/boffice/agenda.php
@@ -11,11 +11,11 @@ $listjourheure = array();
$letabdesjours = array(1=>"Lun.",2=>"Mardi",3=>"Mercredi",4=>"Jeudi",5=>"Vendredi",6=>"Samedi",7=>"Dimanche");
-if($_GET['type']!='') $lasuite = " AND type='".$_GET['type']."' ";
-elseif($_GET['theme']!='') $lasuite = " AND theme='".$_GET['theme']."' ";
-elseif($_GET['lieu']!='') $lasuite = " AND lieu='".$_GET['lieu']."' ";
-elseif($_GET['interv']!='') $lasuite = " AND intervenant='".$_GET['interv']."' ";
-elseif($_GET['refer']!='') $lasuite = " AND referent='".$_GET['refer']."' ";
+if(isset($_GET['type']) && $_GET['type']!='') $lasuite = " AND type='".$_GET['type']."' ";
+elseif(isset($_GET['theme']) && $_GET['theme']!='') $lasuite = " AND theme='".$_GET['theme']."' ";
+elseif(isset($_GET['lieu']) && $_GET['lieu']!='') $lasuite = " AND lieu='".$_GET['lieu']."' ";
+elseif(isset($_GET['interv']) && $_GET['interv']!='') $lasuite = " AND intervenant='".$_GET['interv']."' ";
+elseif(isset($_GET['refer']) && $_GET['refer']!='') $lasuite = " AND referent='".$_GET['refer']."' ";
else $lasuite = "";
@@ -203,4 +203,4 @@ if(isset($_GET['refer']) && ($_GET['refer']!='')) echo "Référent :