diff --git a/htdocs/admin/facture.php b/htdocs/admin/facture.php
index 54bae759647..e77d10d9ee7 100644
--- a/htdocs/admin/facture.php
+++ b/htdocs/admin/facture.php
@@ -261,6 +261,24 @@ if ($action == 'setforcedate')
     }
 }
 
+if ($action == 'set_FAC_AUTO_FILLJS')
+{
+	$freetext = GETPOST('FAC_AUTO_FILLJS');	// No alpha here, we want exact string
+
+	$res = dolibarr_set_const($db, "FAC_AUTO_FILLJS",$freetext,'chaine',0,'',$conf->entity);
+
+	if (! $res > 0) $error++;
+
+	if (! $error)
+	{
+		setEventMessage($langs->trans("SetupSaved"));
+	}
+	else
+	{
+		setEventMessage($langs->trans("Error"),'errors');
+	}
+}
+
 
 /*
  * View
@@ -765,6 +783,20 @@ print '<input type="submit" class="button" value="'.$langs->trans("Modify").'" /
 print "</td></tr>\n";
 print '</form>';
 
+// Add js auto fill amount on paiement form
+$var=! $var;
+print '<form action="'.$_SERVER["PHP_SELF"].'" method="POST">';
+print '<input type="hidden" name="token" value="'.$_SESSION['newtoken'].'" />';
+print '<input type="hidden" name="action" value="set_FAC_AUTO_FILLJS" />';
+print '<tr '.$bc[$var].'><td>';
+print $langs->trans("JSOnPaimentBill");
+print '</td><td width="60" align="center">';
+print $form->selectyesno("FAC_AUTO_FILLJS",$conf->global->FAC_AUTO_FILLJS,1);
+print '</td><td align="right">';
+print '<input type="submit" class="button" value="'.$langs->trans("Modify").'" />';
+print "</td></tr>\n";
+print '</form>';
+
 print '</table>';
 
 
diff --git a/htdocs/fourn/facture/paiement.php b/htdocs/fourn/facture/paiement.php
index 5e7658d25b0..953348dbb49 100644
--- a/htdocs/fourn/facture/paiement.php
+++ b/htdocs/fourn/facture/paiement.php
@@ -5,6 +5,7 @@
  * Copyright (C) 2004		Christophe Combelles	<ccomb@free.fr>
  * Copyright (C) 2005		Marc Barilley / Ocebo	<marc@ocebo.com>
  * Copyright (C) 2005-2012	Regis Houssin			<regis.houssin@capnetworks.com>
+ * Copyright (C) 2014		Teddy Andreotti			<125155@supinfo.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -328,9 +329,19 @@ if ($action == 'create' || $action == 'confirm_paiement' || $action == 'add_paie
 	                {
 	                    $i = 0;
 	                    print '<br>';
-
 	                    print $langs->trans('Invoices').'<br>';
-	                    print '<table class="noborder" width="100%">';
+
+						if(!empty($conf->global->FAC_AUTO_FILLJS)){
+							//Addjs for AutoFill
+							print "\n".'<script type="text/javascript" language="javascript">';
+							print ' $(document).ready(function () {';
+							print ' 	$(".AutoFillAmout").on(\'click touchstart\', function(){
+											$("input[name="+$(this).data(\'rowname\')+"]").val($(this).data("value"));
+										});';
+							print '	});'."\n";
+							print '	</script>'."\n";
+						}
+						print '<table class="noborder" width="100%">';
 	                    print '<tr class="liste_titre">';
 	                    print '<td>'.$langs->trans('Ref').'</td>';
 	                    print '<td>'.$langs->trans('RefSupplier').'</td>';
@@ -370,8 +381,10 @@ if ($action == 'create' || $action == 'confirm_paiement' || $action == 'add_paie
 	                        print '<td align="right">'.price($objp->total_ttc - $objp->am).'</td>';
 	                        print '<td align="center">';
 	                        $namef = 'amount_'.$objp->facid;
+							if(!empty($conf->global->FAC_AUTO_FILLJS))
+								print img_picto("Auto fill",'1rightarrow_selected', "class='AutoFillAmout' data-rowname='".$namef."' data-value='".($objp->total_ttc - $objp->am)."'"); // TODO ADD lang
 	                        print '<input type="text" size="8" name="'.$namef.'" value="'.GETPOST($namef).'">';
-	                        print "</td></tr>\n";
+							print "</td></tr>\n";
 	                        $total+=$objp->total_ht;
 	                        $total_ttc+=$objp->total_ttc;
 	                        $totalrecu+=$objp->am;
diff --git a/htdocs/langs/fr_FR/admin.lang b/htdocs/langs/fr_FR/admin.lang
index 1624a8222bd..31996a4a74c 100644
--- a/htdocs/langs/fr_FR/admin.lang
+++ b/htdocs/langs/fr_FR/admin.lang
@@ -1075,6 +1075,7 @@ NotificationsDesc=La fonction des notifications par emails permet d'envoyer auto
 ModelModules=Modèle de documents
 DocumentModelOdt=Génération depuis des modèles OpenDocument (Fichier .ODT ou .ODS OpenOffice, KOffice, TextEdit…)
 WatermarkOnDraft=Filigrane sur les documents brouillons
+JSOnPaimentBill=Ajout surcouche js
 CompanyIdProfChecker=Règles sur les Identifiants professionnels
 MustBeUnique=Doit être unique ?
 MustBeMandatory=Obligatoire pour creer tiers ?