diff --git a/inscrit_event.php b/inscrit_event.php
index 0979c190feb61c53ffde1185dcb45db78830828c..f473b7a845f29affb29514a677f324cbff505a81 100644
--- a/inscrit_event.php
+++ b/inscrit_event.php
@@ -43,13 +43,13 @@ include("config.php");
 					?>
 				<form name="inscrit_event" action="inscrit_event.php" onsubmit="validateForm()" method="post">
 					<p>Nom </p>
-					<p><input type="text" size="20" maxlength="18" name="nom" value= <?php echo '"'.$nom.'"'?> onChange="if(!verifLetter(this.value)){alert("Only letters and spaces are allowed")}"/></p>
+					<p><input type="text" size="20" maxlength="18" name="nom" value= <?php echo '"'.$nom.'"'?> onChange="if(!verifLetter(this.value)){alert("Only letters and spaces are allowed"); return false;}"/></p>
 					<p>Prenom</p>
-					<p><input type="text" size="20" maxlength="18" name="prenom"  value= <?php echo '"'.$prenom.'"'?> onChange="if(!verifLetter(this.value)){alert("Only letters and spaces are allowed")}"/></p>
+					<p><input type="text" size="20" maxlength="18" name="prenom"  value= <?php echo '"'.$prenom.'"'?> onChange="if(!verifLetter(this.value)){alert("Only letters and spaces are allowed"); return false;}"/></p>
 					<p>Adresse</p>
 					<p><input type="text" size="20" maxlength="128" name="adresse"  value= <?php echo '"'.$adresse.'"'?>/></p>
 					<p>Telephone</p> 
-					<p><input type="text" size="20" maxlength="18" name="telephone" value= <?php echo '"'.$telephone.'"'?> onChange="if(!verifNumber(this.value)){alert("Only numbers are allowed")}"/></p>
+					<p><input type="text" size="20" maxlength="18" name="telephone" value= <?php echo '"'.$telephone.'"'?> onChange="if(!verifNumber(this.value)){alert("Only numbers are allowed"); return false;}"/></p>
 					<p>Demande de personnage(donner la description la plus précise du type de rôle que vous souhaiteriez jouer)</p>
 					<p><input type="text" size="20" maxlength="5000" name="demande_perso"></p>
 					<input type="submit" value="Valider" name="validation"/>