diff --git a/htdocs/core/search_page.php b/htdocs/core/search_page.php
index 9f1734b2326..49fefc3ebed 100644
--- a/htdocs/core/search_page.php
+++ b/htdocs/core/search_page.php
@@ -85,7 +85,7 @@ if (((! empty($conf->product->enabled) && $user->rights->produit->lire) || (! em
 	&& ! empty($conf->global->MAIN_SEARCHFORM_PRODUITSERVICE))
 {
 	$langs->load("products");
-	$searchform.=printSearchForm(DOL_URL_ROOT.'/product/list.php', DOL_URL_ROOT.'/product/list.php', img_object('','product').' '.$langs->trans("Products")."/".$langs->trans("Services"), 'products', 'sall');
+	$searchform.=printSearchForm(DOL_URL_ROOT.'/product/list.php', DOL_URL_ROOT.'/product/list.php', img_object('','product').' '.$langs->trans("Products")."/".$langs->trans("Services"), 'products', 'sall', '', 'sall'.rand(0,10));
 	$nbofsearch++;
 }
 
@@ -100,7 +100,7 @@ if (((! empty($conf->product->enabled) && $user->rights->produit->lire) || (! em
 if (! empty($conf->adherent->enabled) && ! empty($conf->global->MAIN_SEARCHFORM_ADHERENT) && $user->rights->adherent->lire)
 {
 	$langs->load("members");
-	$searchform.=printSearchForm(DOL_URL_ROOT.'/adherents/list.php', DOL_URL_ROOT.'/adherents/list.php', img_object('','user').' '.$langs->trans("Members"), 'member', 'sall');
+	$searchform.=printSearchForm(DOL_URL_ROOT.'/adherents/list.php', DOL_URL_ROOT.'/adherents/list.php', img_object('','user').' '.$langs->trans("Members"), 'member', 'sall', 'sall'.rand(0,10));
 	$nbofsearch++;
 }
 
diff --git a/htdocs/main.inc.php b/htdocs/main.inc.php
index 15f2281cc1f..ae9f347f4e8 100644
--- a/htdocs/main.inc.php
+++ b/htdocs/main.inc.php
@@ -9,6 +9,7 @@
  * Copyright (C) 2008      Matteli
  * Copyright (C) 2011-2013 Juanjo Menent		<jmenent@2byte.es>
  * Copyright (C) 2012      Christophe Battarel   <christophe.battarel@altairis.fr>
+ * Copyright (C) 2014      Marcos García        <marcosgdf@gmail.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
@@ -1556,7 +1557,7 @@ function left_menu($menu_array_before, $helppagename='', $moresearchform='', $me
 	    && ! empty($conf->global->MAIN_SEARCHFORM_PRODUITSERVICE))
 	    {
 	        $langs->load("products");
-	        $searchform.=printSearchForm(DOL_URL_ROOT.'/product/list.php', DOL_URL_ROOT.'/product/list.php', img_object('','product').' '.$langs->trans("Products")."/".$langs->trans("Services"), 'products', 'sall', 'P');
+	        $searchform.=printSearchForm(DOL_URL_ROOT.'/product/list.php', DOL_URL_ROOT.'/product/list.php', img_object('','product').' '.$langs->trans("Products")."/".$langs->trans("Services"), 'products', 'sall', 'P', 'sall'.rand(0, 10));
 	    }
 
 	    if (((! empty($conf->product->enabled) && $user->rights->produit->lire) || (! empty($conf->service->enabled) && $user->rights->service->lire)) && ! empty($conf->fournisseur->enabled)
@@ -1569,7 +1570,7 @@ function left_menu($menu_array_before, $helppagename='', $moresearchform='', $me
 	    if (! empty($conf->adherent->enabled) && ! empty($conf->global->MAIN_SEARCHFORM_ADHERENT) && $user->rights->adherent->lire)
 	    {
 	        $langs->load("members");
-	        $searchform.=printSearchForm(DOL_URL_ROOT.'/adherents/list.php', DOL_URL_ROOT.'/adherents/list.php', img_object('','user').' '.$langs->trans("Members"), 'member', 'sall', 'M');
+	        $searchform.=printSearchForm(DOL_URL_ROOT.'/adherents/list.php', DOL_URL_ROOT.'/adherents/list.php', img_object('','user').' '.$langs->trans("Members"), 'member', 'sall', 'M', 'sall'.rand(0, 10));
 	    }
 
 	    // Execute hook printSearchForm
@@ -1806,12 +1807,17 @@ function getHelpParamFor($helppagename,$langs)
  *  @param  string	$htmlmodesearch     Value to set into parameter "mode_search" ('soc','contact','products','member',...)
  *  @param  string	$htmlinputname      Field Name input form
  *  @param	string	$accesskey			Accesskey
+ * @param string $htmlinputid           Input ID
  *  @return	string
  */
-function printSearchForm($urlaction,$urlobject,$title,$htmlmodesearch,$htmlinputname,$accesskey='')
+function printSearchForm($urlaction,$urlobject,$title,$htmlmodesearch,$htmlinputname,$accesskey='', $htmlinputid = '')
 {
     global $conf,$langs;
 
+    if (!$htmlinputid) {
+        $htmlinputid = $htmlinputname;
+    }
+
     $ret='';
     $ret.='<form action="'.$urlaction.'" method="post">';
 	$ret.='<div class="menu_titre menu_titre_search">';
@@ -1828,7 +1834,7 @@ function printSearchForm($urlaction,$urlobject,$title,$htmlmodesearch,$htmlinput
     $ret.=($accesskey?' accesskey="'.$accesskey.'"':'');
     if (! empty($conf->global->MAIN_HTML5_PLACEHOLDER)) $ret.=' placeholder="'.$langs->trans("SearchOf").''.strip_tags($title).'"';
     else $ret.=' title="'.$langs->trans("SearchOf").''.strip_tags($title).'"';
-    $ret.=' name="'.$htmlinputname.'" id="'.$htmlinputname.'" size="10" />';
+    $ret.=' name="'.$htmlinputname.'" id="'.$htmlinputid.'" size="10" />';
     $ret.='<input type="submit" class="button" style="padding-top: 4px; padding-bottom: 4px; padding-left: 6px; padding-right: 6px" value="'.$langs->trans("Go").'">';
     $ret.="</form>\n";
     return $ret;