diff --git a/contact.php b/contact.php
index dc5848c3c8eba016d4eb61cefbd8ab2f6d89eadc..09019a0aab512a302d28c5760a1dadcf1028906f 100644
--- a/contact.php
+++ b/contact.php
@@ -47,9 +47,9 @@ session_start();
     <p>
     <form name="contact" method="post" onsubmit="validateForm()" action="traitement_mail.php">
         <pre>
-            Nom : <input id="Nom" name="Nom" size="30" onChange="if(!verifLetter(this.value)){alert("Only letters and spaces are allowed")}>
+            Nom : <input id="Nom" name="Nom" size="30" onChange="if(!verifLetter(this.value)){alert("Only letters and spaces are allowed"); return false;}>
             Objet : <input id="Objet" name="Objet">
-            Adresse mail : <input id="Mail" name="Mail" size="50" onChange="if(!verifMail(this.value)){alert("Please enter a valid mail adress")}">
+            Adresse mail : <input id="Mail" name="Mail" size="50" onChange="if(!verifMail(this.value)){alert("Please enter a valid mail adress"); return false;}">
             <br/>          Message :<br/>
             <textarea name="Message" rows="20" cols="50"></textarea>
             <input type="SUBMIT" value="Envoyer"/> <!--permet en théorie d'envoyer le mail, à tester pour être sûr-->