diff --git a/htdocs/margin/productMargins.php b/htdocs/margin/productMargins.php
index ac006c042aa..a47ec246aaf 100644
--- a/htdocs/margin/productMargins.php
+++ b/htdocs/margin/productMargins.php
@@ -74,17 +74,18 @@ if (!$sortfield) {
 
 $startdate = $enddate = '';
 
-if (!empty($_POST['startdatemonth'])) {
-	$startdate = dol_mktime(0, 0, 0, $_POST['startdatemonth'], $_POST['startdateday'], $_POST['startdateyear']);
+if (GETPOST('startdatemonth')) {
+	$startdate = dol_mktime(0, 0, 0, GETPOST('startdatemonth', 'int'),  GETPOST('startdateday', 'int'),  GETPOST('startdateyear', 'int'));
 }
-if (!empty($_POST['enddatemonth'])) {
-	$enddate = dol_mktime(23, 59, 59, $_POST['enddatemonth'], $_POST['enddateday'], $_POST['enddateyear']);
+if (GETPOST('enddatemonth')) {
+	$enddate = dol_mktime(23, 59, 59, GETPOST('enddatemonth', 'int'), GETPOST('enddateday', 'int'), GETPOST('enddateyear'));
 }
 
 // Initialize technical object to manage hooks of page. Note that conf->hooks_modules contains array of hook context
 $object = new Product($db);
 $hookmanager->initHooks(array('marginproductlist'));
 
+
 /*
  * View
  */
@@ -224,13 +225,31 @@ $sql .= $db->order($sortfield, $sortorder);
 // TODO: calculate total to display then restore pagination
 //$sql.= $db->plimit($conf->liste_limit +1, $offset);
 
+$param = '&id='.((int) $id);
+if (GETPOST('startdatemonth', 'int')) {
+	$param .= '&startdateyear='.GETPOST('startdateyear', 'int');
+	$param .= '&startdatemonth='.GETPOST('startdatemonth', 'int');
+	$param .= '&startdateday='.GETPOST('startdateday', 'int');
+}
+if (GETPOST('enddatemonth', 'int')) {
+	$param .= '&enddateyear='.GETPOST('enddateyear', 'int');
+	$param .= '&enddatemonth='.GETPOST('enddatemonth', 'int');
+	$param .= '&enddateday='.GETPOST('enddateday', 'int');
+}
+$listofcateg = GETPOST('categories', 'array:int');
+if (is_array($listofcateg)) {
+	foreach ($listofcateg as $val) {
+		$param .= '&categories[]='.$val;
+	}
+}
+
 dol_syslog('margin::productMargins.php', LOG_DEBUG);
 $result = $db->query($sql);
 if ($result) {
 	$num = $db->num_rows($result);
 
 	print '<br>';
-	print_barre_liste($langs->trans("MarginDetails"), $page, $_SERVER["PHP_SELF"], "&amp;id=".$id, $sortfield, $sortorder, '', $num, $num, '', 0, '', '', 0, 1);
+	print_barre_liste($langs->trans("MarginDetails"), $page, $_SERVER["PHP_SELF"], $param, $sortfield, $sortorder, '', $num, $num, '', 0, '', '', 0, 1);
 
 	//var_dump($conf->global->MARGIN_TYPE);
 	if ($conf->global->MARGIN_TYPE == "1") {
@@ -247,20 +266,20 @@ if ($result) {
 
 	print '<tr class="liste_titre">';
 	if ($id > 0) {
-		print_liste_field_titre("Invoice", $_SERVER["PHP_SELF"], "f.ref", "", "&amp;id=".$id, '', $sortfield, $sortorder);
-		print_liste_field_titre("DateInvoice", $_SERVER["PHP_SELF"], "f.datef", "", "&amp;id=".$id, '', $sortfield, $sortorder, 'center ');
+		print_liste_field_titre("Invoice", $_SERVER["PHP_SELF"], "f.ref", "", $param, '', $sortfield, $sortorder);
+		print_liste_field_titre("DateInvoice", $_SERVER["PHP_SELF"], "f.datef", "", $param, '', $sortfield, $sortorder, 'center ');
 	} else {
-		print_liste_field_titre("ProductService", $_SERVER["PHP_SELF"], "p.ref", "", "&amp;id=".$id, '', $sortfield, $sortorder);
+		print_liste_field_titre("ProductService", $_SERVER["PHP_SELF"], "p.ref", "", $param, '', $sortfield, $sortorder);
 	}
-	print_liste_field_titre("Qty", $_SERVER["PHP_SELF"], "product_qty", "", "&amp;id=".$id, '', $sortfield, $sortorder, 'center ');
-	print_liste_field_titre("SellingPrice", $_SERVER["PHP_SELF"], "selling_price", "", "&amp;id=".$id, '', $sortfield, $sortorder, 'right ');
-	print_liste_field_titre($labelcostprice, $_SERVER["PHP_SELF"], "buying_price", "", "&amp;id=".$id, '', $sortfield, $sortorder, 'right ');
-	print_liste_field_titre("Margin", $_SERVER["PHP_SELF"], "marge", "", "&amp;id=".$id, '', $sortfield, $sortorder, 'right ');
+	print_liste_field_titre("Qty", $_SERVER["PHP_SELF"], "product_qty", "", $param, '', $sortfield, $sortorder, 'center ');
+	print_liste_field_titre("SellingPrice", $_SERVER["PHP_SELF"], "selling_price", "", $param, '', $sortfield, $sortorder, 'right ');
+	print_liste_field_titre($labelcostprice, $_SERVER["PHP_SELF"], "buying_price", "", $param, '', $sortfield, $sortorder, 'right ');
+	print_liste_field_titre("Margin", $_SERVER["PHP_SELF"], "marge", "", $param, '', $sortfield, $sortorder, 'right ');
 	if (!empty($conf->global->DISPLAY_MARGIN_RATES)) {
-		print_liste_field_titre("MarginRate", $_SERVER["PHP_SELF"], "", "", "&amp;id=".$id, '', $sortfield, $sortorder, 'right ');
+		print_liste_field_titre("MarginRate", $_SERVER["PHP_SELF"], "", "", $param, '', $sortfield, $sortorder, 'right ');
 	}
 	if (!empty($conf->global->DISPLAY_MARK_RATES)) {
-		print_liste_field_titre("MarkRate", $_SERVER["PHP_SELF"], "", "", "&amp;id=".$id, '', $sortfield, $sortorder, 'right ');
+		print_liste_field_titre("MarkRate", $_SERVER["PHP_SELF"], "", "", $param, '', $sortfield, $sortorder, 'right ');
 	}
 	print "</tr>\n";