diff --git a/htdocs/compta/bank/document.php b/htdocs/compta/bank/document.php
index 084cddf51cd0c9f8fa4a1f12165e8b4d7a2c3ba1..befccb3c4d3e2d5276a19d720a1fbb9c511ef282 100644
--- a/htdocs/compta/bank/document.php
+++ b/htdocs/compta/bank/document.php
@@ -3,7 +3,7 @@
 /* Copyright (C) 2003-2007 Rodolphe Quiedeville  <rodolphe@quiedeville.org>
  * Copyright (C) 2004-2008 Laurent Destailleur   <eldy@users.sourceforge.net>
  * Copyright (C) 2005      Marc Barilley / Ocebo <marc@ocebo.com>
- * Copyright (C) 2005-2011 Regis Houssin         <regis@dolibarr.fr>
+ * Copyright (C) 2005-2017 Regis Houssin         <regis@dolibarr.fr>
  *
  * 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
@@ -62,9 +62,7 @@ $result = restrictedArea($user, 'banque', $fieldvalue, 'bank_account', '', '',
 $sortfield = GETPOST("sortfield", 'alpha');
 $sortorder = GETPOST("sortorder", 'alpha');
 $page = GETPOST("page", 'int');
-if ($page == -1) {
-    $page = 0;
-}
+if (empty($page) || $page == -1) { $page = 0; }
 $offset = $conf->liste_limit * $page;
 $pageprev = $page - 1;
 $pagenext = $page + 1;
@@ -122,21 +120,21 @@ if ($id > 0 || !empty($ref)) {
         $linkback = '<a href="'.DOL_URL_ROOT.'/compta/bank/index.php">'.$langs->trans("BackToList").'</a>';
 
         dol_banner_tab($object, 'ref', $linkback, 1, 'ref', 'ref', $morehtmlref);
-        
-        
+
+
         print '<div class="fichecenter">';
         print '<div class="underbanner clearboth"></div>';
-       
+
         print '<table class="border" width="100%">';
         print '<tr><td class="titlefield">' . $langs->trans("NbOfAttachedFiles") . '</td><td colspan="3">' . count($filearray) . '</td></tr>';
         print '<tr><td>' . $langs->trans("TotalSizeOfAttachedFiles") . '</td><td colspan="3">' . $totalsize . ' ' . $langs->trans("bytes") . '</td></tr>';
         print "</table>\n";
 
         print '</div>';
-        
+
         dol_fiche_end();
 
-        
+
         $modulepart = 'bank';
         $permission = $user->rights->banque->modifier;
         $permtoedit = $user->rights->banque->modifier;
diff --git a/htdocs/core/class/dolgraph.class.php b/htdocs/core/class/dolgraph.class.php
index 4fad0149a5bd3432ab02665b927a39f3fa9bbe82..d603d1b6cc145449aabb1adc7a3d27944c2b0063 100644
--- a/htdocs/core/class/dolgraph.class.php
+++ b/htdocs/core/class/dolgraph.class.php
@@ -25,7 +25,7 @@
 
 /**
  * Class to build graphs.
- * Usage is: 
+ * Usage is:
  *    $dolgraph=new DolGraph();
  *    $dolgraph->SetTitle($langs->transnoentities('Tracking_Projects_Pourcent').'<br>'.$langs->transnoentities('Tracking_IndicatorDefGraph').'%');
  *    $dolgraph->SetMaxValue(50);
@@ -570,6 +570,7 @@ class DolGraph
 	function GetFloorMinValue()
 	{
 		$min = $this->GetMinValueInData();
+		if ($min == '') $min=0;
 		if ($min != 0) $min--;
 		$size=dol_strlen(abs(floor($min)));
 		$factor=1;
@@ -868,7 +869,7 @@ class DolGraph
 		  return;
 		}
 		$this->stringtoshow.='<div id="placeholder_'.$tag.'" style="width:'.$this->width.'px;height:'.$this->height.'px;" class="dolgraph'.(empty($this->cssprefix)?'':' dolgraph'.$this->cssprefix).'"></div>'."\n";
-		
+
 		$this->stringtoshow.='<script id="'.$tag.'">'."\n";
 		$this->stringtoshow.='$(function () {'."\n";
 		$i=$firstlot;