diff --git a/htdocs/compta/bank/bilanmens.php b/htdocs/compta/bank/bilanmens.php
new file mode 100644
index 00000000000..f1a65874744
--- /dev/null
+++ b/htdocs/compta/bank/bilanmens.php
@@ -0,0 +1,154 @@
+<?PHP
+/* Copyright (C) 2004 Laurent Destailleur  <eldy@users.sourceforge.net>
+ *
+ * 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
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * $Id$
+ * $Source$
+ *
+ */
+require("./pre.inc.php");
+
+/*
+ *
+ */
+
+llxHeader();
+
+/*
+ * Sécurité accés client
+ */
+if ($user->societe_id > 0) 
+{
+  $socidp = $user->societe_id;
+}
+
+print_titre("Bilan mensuel Entrées/Sorties pour ce compte bancaire");
+
+
+# Le bilan est basé sur lx_bank (car doit inclure les transactions sans facture)
+# plutot que sur llx_paiement + llx_paiementfourn
+
+$sql = "SELECT sum(f.amount), date_format(f.dateo,'%Y-%m') as dm";
+$sql .= " FROM llx_bank as f";
+$sql .= " WHERE f.amount >= 0";
+if ($account) { $sql .= " AND fk_account = $account"; }
+$sql .= " GROUP BY dm";
+
+if ($db->query($sql))
+{
+  $num = $db->num_rows();
+  $i = 0; 
+  while ($i < $num)
+    {
+      $row = $db->fetch_row($i);
+      $encaiss[$row[1]] = $row[0];
+      $i++;
+    }
+} else {
+	print "Erreur: SQL $sql";
+}
+
+$sql = "SELECT sum(f.amount), date_format(f.dateo,'%Y-%m') as dm";
+$sql .= " FROM llx_bank as f";
+$sql .= " WHERE f.amount <= 0";
+if ($account) { $sql .= " AND fk_account = $account"; }
+$sql .= " GROUP BY dm";
+
+if ($db->query($sql))
+{
+  $num = $db->num_rows();
+  $i = 0;
+  while ($i < $num)
+    {
+      $row = $db->fetch_row($i);
+      $decaiss[$row[1]] = -$row[0];
+      $i++;
+    }
+} else {
+    print "Erreur: SQL $sql";
+}
+
+
+print '<table class="border" width="100%" border="1" cellspacing="0" cellpadding="4">';
+print '<tr class="liste_titre"><td rowspan=2>Mois</td>';
+
+$year_current = strftime("%Y",time());
+
+if ($year_current < (MAIN_START_YEAR + 2))
+{
+  $year_start = MAIN_START_YEAR;
+  $year_end = (MAIN_START_YEAR + 2);
+}
+else
+{
+  $year_start = $year_current - 2;
+  $year_end = $year_current;
+}
+
+for ($annee = $year_start ; $annee <= $year_end ; $annee++)
+{
+  print '<td align="center" width="20%" colspan="2">'.$annee.'</td>';
+}
+print '</tr>';
+print '<tr class="liste_titre">';
+for ($annee = $year_start ; $annee <= $year_end ; $annee++)
+{ 
+  print '<td align="center">Débits</td><td align="center">Crédits</td>';
+}
+print '</tr>';
+
+for ($mois = 1 ; $mois < 13 ; $mois++)
+{
+  print '<tr>';
+  print "<td>".strftime("%B",mktime(1,1,1,$mois,1,2000))."</td>";
+  for ($annee = $year_start ; $annee <= $year_end ; $annee++)
+    {
+      print '<td align="right" width="10%">&nbsp;';
+      $case = strftime("%Y-%m",mktime(1,1,1,$mois,1,$annee));
+      if ($decaiss[$case]>0)
+	{
+	  print price($decaiss[$case]);
+	  $totsorties[$annee]+=$decaiss[$case];
+	}
+      print "</td>";
+
+      print '<td align="right" width="10%">&nbsp;';
+      $case = strftime("%Y-%m",mktime(1,1,1,$mois,1,$annee));
+      if ($encaiss[$case]>0)
+	{
+	  print price($encaiss[$case]);
+	  $totentrees[$annee]+=$encaiss[$case];
+	}
+      print "</td>";
+    }
+
+  print '</tr>';
+}
+
+print "<tr><td><b>Total annuel</b></td>";
+for ($annee = $year_start ; $annee <= $year_end ; $annee++)
+{
+  print '<td align="right">'.$totsorties[$annee].'</td><td align="right">'.$totentrees[$annee].'</td>';
+}
+print "</tr>\n";
+
+print "</table>";
+
+$db->close();
+
+llxFooter("<em>Derni&egrave;re modification $Date$ r&eacute;vision $Revision$</em>");
+
+?>
diff --git a/htdocs/compta/bank/pre.inc.php b/htdocs/compta/bank/pre.inc.php
index 9518b9d6089..e7ab5fa9f31 100644
--- a/htdocs/compta/bank/pre.inc.php
+++ b/htdocs/compta/bank/pre.inc.php
@@ -1,6 +1,7 @@
 <?PHP
 /* Copyright (C) 2001-2003 Rodolphe Quiedeville <rodolphe@quiedeville.org>
- * Copyright (C) 2003 Jean-Louis Bergamo <jlb@j1b.org>
+ * Copyright (C) 2003      Jean-Louis Bergamo   <jlb@j1b.org>
+ * Copyright (C) 2004      Laurent Destailleur  <eldy@users.sourceforge.net>
  *
  * 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
@@ -37,9 +38,6 @@ function llxHeader($head = "")
 
   $menu = new Menu();
 
-  $menu->add("index.php","Comptes");
-  $menu->add_submenu("search.php","Recherche");
-
 
   $sql = "SELECT rowid, label FROM ".MAIN_DB_PREFIX."bank_account where clos = 0 AND courant = 1";
   $result = $db->query($sql);
@@ -54,6 +52,7 @@ function llxHeader($head = "")
 	  $objp = $db->fetch_object($i);
 	  $menu->add("account.php?account=" . $objp->rowid,  $objp->label);
 	  $menu->add_submenu("releve.php?account=" . $objp->rowid ,"Relevés");
+      $menu->add_submenu("bilanmens.php?account=" . $objp->rowid ,"Bilan mensuel E/S");
 	  $i++;
 	}
     }
@@ -61,6 +60,7 @@ function llxHeader($head = "")
 
   $menu->add("index.php","Banque");
 
+  $menu->add_submenu("search.php","Recherche écriture");
   $menu->add_submenu("budget.php","Budgets");
   $menu->add_submenu("bilan.php","Bilan");