Perf: Speed enhancement. File can be saved into cache.

htdocs/admin/menus/menu.js.php

@@ -34,13 +34,24 @@ if (! defined('NOREQUIREMENU'))   define('NOREQUIREMENU',1);
 if (! defined('NOREQUIREHTML'))   define('NOREQUIREHTML',1);
 if (! defined('NOREQUIREAJAX'))   define('NOREQUIREAJAX','1');
 
+session_cache_limiter( FALSE );
 
 require_once("../../master.inc.php");
 require_once(DOL_DOCUMENT_ROOT."/lib/functions.lib.php");
 
-if (! empty($_GET["lang"])) $langs->setDefaultLang($_GET["lang"]);	// If language was forced on URL by the main.inc.php
-$langs->load("main",0,0);   // We need to load direction but also content to translate 'ExpandAll'
+// Define css type
+header('Content-type: application/javascript');
+// Important: Following code is to avoid page request by browser and PHP CPU at
+// each Dolibarr page access.
+if (empty($dolibarr_nocache)) header('Cache-Control: max-age=3600, public, must-revalidate');
+else header('Cache-Control: no-cache');
 
+// On the fly GZIP compression for all pages (if browser support it). Must set the bit 3 of constant to 1.
+if (isset($conf->global->MAIN_OPTIMIZE_SPEED) && ($conf->global->MAIN_OPTIMIZE_SPEED & 0x04)) { ob_start("ob_gzhandler"); }
+
+if (! empty($_GET["lang"])) $langs->setDefaultLang($_GET["lang"]);  // If language was forced on URL
+if (! empty($_GET["theme"])) $conf->theme=$_GET["theme"];  // If theme was forced on URL
+$langs->load("main",0,0);
 ?>