diff --git a/htdocs/core/menus/standard/eldy.lib.php b/htdocs/core/menus/standard/eldy.lib.php
index 3b16988abe5..18becb5d0e4 100644
--- a/htdocs/core/menus/standard/eldy.lib.php
+++ b/htdocs/core/menus/standard/eldy.lib.php
@@ -48,7 +48,7 @@ function print_eldy_menu($db,$atarget,$type_user)
 
 	// Home
 	$classname="";
-	if ($_SESSION["mainmenu"] && $_SESSION["mainmenu"] == "home")
+	if (isset($_SESSION["mainmenu"]) && $_SESSION["mainmenu"] == "home")
 	{
 		$classname='class="tmenusel"'; $_SESSION['idmenu']='';
 	}
@@ -76,7 +76,7 @@ function print_eldy_menu($db,$atarget,$type_user)
 		$langs->load("suppliers");
 
 		$classname="";
-		if ($_SESSION["mainmenu"] && $_SESSION["mainmenu"] == "companies")
+		if (isset($_SESSION["mainmenu"]) && $_SESSION["mainmenu"] == "companies")
 		{
 			$classname='class="tmenusel"'; $_SESSION['idmenu']='';
 		}
@@ -110,14 +110,14 @@ function print_eldy_menu($db,$atarget,$type_user)
 	}
 
 	// Products-Services
-	$tmpentry=array('enabled'=>($conf->product->enabled || $conf->service->enabled), 'perms'=>($user->rights->produit->lire || $user->rights->service->lire), 'module'=>'product|service');
-	$showmode=dol_eldy_showmenu($type_user, $tmpentry, $listofmodulesforexternal);
-	if ($showmode)
-	{
+	$tmpentry=array('enabled'=>($conf->product->enabled || $conf->service->enabled), 'perms'=>($user->rights->produit->lire || $user->rights->service->lire), 'module'=>'product|service');
+	$showmode=dol_eldy_showmenu($type_user, $tmpentry, $listofmodulesforexternal);
+	if ($showmode)
+	{
 		$langs->load("products");
 
 		$classname="";
-		if ($_SESSION["mainmenu"] && $_SESSION["mainmenu"] == "products")
+		if (isset($_SESSION["mainmenu"]) && $_SESSION["mainmenu"] == "products")
 		{
 			$classname='class="tmenusel"'; $_SESSION['idmenu']='';
 		}
@@ -167,7 +167,7 @@ function print_eldy_menu($db,$atarget,$type_user)
 		$langs->load("commercial");
 
 		$classname="";
-		if ($_SESSION["mainmenu"] && $_SESSION["mainmenu"] == "commercial")
+		if (isset($_SESSION["mainmenu"]) && $_SESSION["mainmenu"] == "commercial")
 		{
 			$classname='class="tmenusel"'; $_SESSION['idmenu']='';
 		}
@@ -209,7 +209,7 @@ function print_eldy_menu($db,$atarget,$type_user)
 		$langs->load("compta");
 
 		$classname="";
-		if ($_SESSION["mainmenu"] && $_SESSION["mainmenu"] == "accountancy")
+		if (isset($_SESSION["mainmenu"]) && $_SESSION["mainmenu"] == "accountancy")
 		{
 			$classname='class="tmenusel"'; $_SESSION['idmenu']='';
 		}
@@ -252,7 +252,7 @@ function print_eldy_menu($db,$atarget,$type_user)
         $langs->load("banks");
 
         $classname="";
-        if ($_SESSION["mainmenu"] && $_SESSION["mainmenu"] == "bank")
+        if (isset($_SESSION["mainmenu"]) && $_SESSION["mainmenu"] == "bank")
         {
             $classname='class="tmenusel"'; $_SESSION['idmenu']='';
         }
@@ -294,7 +294,7 @@ function print_eldy_menu($db,$atarget,$type_user)
 		$langs->load("projects");
 
 		$classname="";
-		if ($_SESSION["mainmenu"] && $_SESSION["mainmenu"] == "project")
+		if (isset($_SESSION["mainmenu"]) && $_SESSION["mainmenu"] == "project")
 		{
 			$classname='class="tmenusel"'; $_SESSION['idmenu']='';
 		}
@@ -336,7 +336,7 @@ function print_eldy_menu($db,$atarget,$type_user)
 		$langs->load("other");
 
 		$classname="";
-		if ($_SESSION["mainmenu"] && $_SESSION["mainmenu"] == "tools")
+		if (isset($_SESSION["mainmenu"]) && $_SESSION["mainmenu"] == "tools")
 		{
 			$classname='class="tmenusel"'; $_SESSION['idmenu']='';
 		}
@@ -378,7 +378,7 @@ function print_eldy_menu($db,$atarget,$type_user)
 		$langs->load("shop");
 
 		$classname="";
-		if ($_SESSION["mainmenu"] && $_SESSION["mainmenu"] == "shop")
+		if (isset($_SESSION["mainmenu"]) && $_SESSION["mainmenu"] == "shop")
 		{
 			$classname='class="tmenusel"'; $_SESSION['idmenu']='';
 		}
@@ -406,7 +406,7 @@ function print_eldy_menu($db,$atarget,$type_user)
 	if ($showmode)
 	{
 		$classname="";
-		if ($_SESSION["mainmenu"] && $_SESSION["mainmenu"] == "members")
+		if (isset($_SESSION["mainmenu"]) && $_SESSION["mainmenu"] == "members")
 		{
 			$classname='class="tmenusel"'; $_SESSION['idmenu']='';
 		}
@@ -451,10 +451,10 @@ function print_eldy_menu($db,$atarget,$type_user)
 	{
 		$idsel=(empty($newTabMenu[$i]['mainmenu'])?'none':$newTabMenu[$i]['mainmenu']);
 
-		$showmode=dol_eldy_showmenu($type_user,$newTabMenu[$i],$listofmodulesforexternal);
+		$showmode=dol_eldy_showmenu($type_user,$newTabMenu[$i],$listofmodulesforexternal);
 
-		if ($showmode == 1)
-		{
+		if ($showmode == 1)
+		{
 			if (preg_match("/^(http:\/\/|https:\/\/)/i",$newTabMenu[$i]['url']))
 			{
 				$url = $newTabMenu[$i]['url'];
@@ -1462,36 +1462,36 @@ function print_left_eldy_menu($db,$menu_array_before,$menu_array_after)
 }
 
 
-/**
- * Function to test if an entry is enabled or not
- *
- * @param	string		$type_user					0=We need backoffice menu, 1=We need frontoffice menu
- * @param	array		&$menuentry					Array for menu entry
- * @param	array		&$listofmodulesforexternal	Array with list of modules allowed to external users
- * @return	int										0=Hide, 1=Show, 2=Show gray
- */
-function dol_eldy_showmenu($type_user, &$menuentry, &$listofmodulesforexternal)
-{
-	//print 'type_user='.$type_user.' module='.$menuentry['module'].' enabled='.$menuentry['enabled'].' perms='.$menuentry['perms'];
-	//print 'ok='.in_array($menuentry['module'], $listofmodulesforexternal);
-
-	if (empty($menuentry['enabled'])) return 0;	// Entry disabled by condition
-	if ($type_user && $menuentry['module'])
-	{
-		$tmploops=explode('|',$menuentry['module']);
-		$found=0;
-		foreach($tmploops as $tmploop)
-		{
-			if (in_array($tmploop, $listofmodulesforexternal)) {
-				$found++; break;
-			}
-		}
-		if (! $found) return 0;	// Entry is for menus all excluded to external users
-	}
-	if (! $menuentry['perms'] && $type_user) return 0; 											// No permissions and user is external
-	if (! $menuentry['perms'] && ! empty($conf->global->MAIN_MENU_HIDE_UNAUTHORIZED))	return 0;	// No permissions and option to hide when not allowed, even for internal user, is on
-	if (! $menuentry['perms']) return 2;															// No permissions and user is external
-	return 1;
+/**
+ * Function to test if an entry is enabled or not
+ *
+ * @param	string		$type_user					0=We need backoffice menu, 1=We need frontoffice menu
+ * @param	array		&$menuentry					Array for menu entry
+ * @param	array		&$listofmodulesforexternal	Array with list of modules allowed to external users
+ * @return	int										0=Hide, 1=Show, 2=Show gray
+ */
+function dol_eldy_showmenu($type_user, &$menuentry, &$listofmodulesforexternal)
+{
+	//print 'type_user='.$type_user.' module='.$menuentry['module'].' enabled='.$menuentry['enabled'].' perms='.$menuentry['perms'];
+	//print 'ok='.in_array($menuentry['module'], $listofmodulesforexternal);
+
+	if (empty($menuentry['enabled'])) return 0;	// Entry disabled by condition
+	if ($type_user && $menuentry['module'])
+	{
+		$tmploops=explode('|',$menuentry['module']);
+		$found=0;
+		foreach($tmploops as $tmploop)
+		{
+			if (in_array($tmploop, $listofmodulesforexternal)) {
+				$found++; break;
+			}
+		}
+		if (! $found) return 0;	// Entry is for menus all excluded to external users
+	}
+	if (! $menuentry['perms'] && $type_user) return 0; 											// No permissions and user is external
+	if (! $menuentry['perms'] && ! empty($conf->global->MAIN_MENU_HIDE_UNAUTHORIZED))	return 0;	// No permissions and option to hide when not allowed, even for internal user, is on
+	if (! $menuentry['perms']) return 2;															// No permissions and user is external
+	return 1;
 }
 
 ?>