diff --git a/htdocs/langs/en_US/main.lang b/htdocs/langs/en_US/main.lang
index acda41d2bb3..111633bf76a 100644
--- a/htdocs/langs/en_US/main.lang
+++ b/htdocs/langs/en_US/main.lang
@@ -793,6 +793,7 @@ Select2NotFound=No result found
 Select2Enter=Enter
 Select2MoreCharacter=or more character
 Select2MoreCharacters=or more characters
+Select2MoreCharactersMore=<br /><br /><strong>Search syntax:</strong><br /><kbd><strong> |</strong></kbd><kbd> OR</kbd> (a|b)<br /><kbd><strong>*</strong></kbd><kbd> Any character</kbd> (a*b)<br /><kbd><strong>^</strong></kbd><kbd> Start with</kbd> (^ab)<br /><kbd><strong>$</strong></kbd><kbd> End with</kbd> (ab$)<br />
 Select2LoadingMoreResults=Loading more results...
 Select2SearchInProgress=Search in progress...
 SearchIntoThirdparties=Thirdparties
diff --git a/htdocs/main.inc.php b/htdocs/main.inc.php
index 20af445b642..c5181edf0bc 100644
--- a/htdocs/main.inc.php
+++ b/htdocs/main.inc.php
@@ -1243,7 +1243,7 @@ function top_htmlhead($head, $title='', $disablejs=0, $disablehead=0, $arrayofjs
             {
             	$tmpplugin=empty($conf->global->MAIN_USE_JQUERY_MULTISELECT)?constant('REQUIRE_JQUERY_MULTISELECT'):$conf->global->MAIN_USE_JQUERY_MULTISELECT;
             	print '<script type="text/javascript" src="'.DOL_URL_ROOT.'/includes/jquery/plugins/'.$tmpplugin.'/'.$tmpplugin.'.min.js'.($ext?'?'.$ext:'').'"></script>'."\n";
-                print '<script type="text/javascript" src="'.DOL_URL_ROOT.'/core/js/select2_locale.js.php'.($ext?'?'.$ext:'').'"></script>'."\n";
+                print '<script type="text/javascript" src="'.DOL_URL_ROOT.'/core/js/select2_locale.js.php?lang='.$langs->defaultlang.($ext?'&amp;'.$ext:'').'"></script>'."\n";
             }
             // jQuery jMobile
             if (! $disablejmobile && (! empty($conf->global->MAIN_USE_JQUERY_JMOBILE) || defined('REQUIRE_JQUERY_JMOBILE') || (! empty($conf->dol_use_jmobile) && $conf->dol_use_jmobile > 0)))
@@ -1307,10 +1307,10 @@ function top_htmlhead($head, $title='', $disablejs=0, $disablehead=0, $arrayofjs
 
             // Global js function
             print '<!-- Includes JS of Dolibarr -->'."\n";
-            print '<script type="text/javascript" src="'.DOL_URL_ROOT.'/core/js/lib_head.js.php?version='.urlencode(DOL_VERSION).($ext?'&amp;'.$ext:'').'"></script>'."\n";
+            print '<script type="text/javascript" src="'.DOL_URL_ROOT.'/core/js/lib_head.js.php'.($ext?'?'.$ext:'').'"></script>'."\n";
 
             // Add datepicker default options
-            print '<script type="text/javascript" src="'.DOL_URL_ROOT.'/core/js/datepicker.js.php?lang='.$langs->defaultlang.($ext?'&amp;'.$ext:'').'"></script>'."\n";
+            print '<script type="text/javascript" src="'.DOL_URL_ROOT.'/core/js/datepicker.js.php'.($ext?'?'.$ext:'').'"></script>'."\n";
 
             // JS forced by modules (relative url starting with /)
             if (! empty($conf->modules_parts['js']))		// $conf->modules_parts['js'] is array('module'=>array('file1','file2'))