diff --git a/htdocs/core/lib/website2.lib.php b/htdocs/core/lib/website2.lib.php
index fb11846a4fb..f882dc9faaf 100644
--- a/htdocs/core/lib/website2.lib.php
+++ b/htdocs/core/lib/website2.lib.php
@@ -49,7 +49,7 @@ function dolSaveMasterFile($filemaster)
 		@chmod($filemaster, octdec($conf->global->MAIN_UMASK));
 	}
 
-		return $result;
+	return $result;
 }
 
 /**
@@ -291,9 +291,10 @@ function dolSavePageContent($filetpl, Website $object, WebsitePage $objectpage,
  * @param	string		$fileindex				Full path of file index.php
  * @param	string		$filetpl				File tpl the index.php page redirect to (used only if $fileindex is provided)
  * @param	string		$filewrapper			Full path of file wrapper.php
+ * @param	Website		$object					Object website
  * @return	boolean								True if OK
  */
-function dolSaveIndexPage($pathofwebsite, $fileindex, $filetpl, $filewrapper)
+function dolSaveIndexPage($pathofwebsite, $fileindex, $filetpl, $filewrapper, $object = null)
 {
 	global $conf;
 
@@ -320,6 +321,44 @@ function dolSaveIndexPage($pathofwebsite, $fileindex, $filetpl, $filewrapper)
 		if (!empty($conf->global->MAIN_UMASK)) {
 			@chmod($fileindex, octdec($conf->global->MAIN_UMASK));
 		}
+
+		if ($object->fk_default_home > 0) {
+			$objectpage = new WebsitePage($db);
+			$objectpage->fetch($object->fk_default_home);
+
+			// Create a version for sublanguages
+			if (empty($objectpage->lang) || !in_array($objectpage->lang, explode(',', $object->otherlang))) {
+				if (empty($conf->global->WEBSITE_DISABLE_MAIN_LANGUAGE_INTO_LANGSUBDIR) && is_object($object) && !empty($object->otherlang)) {
+					$dirname = dirname($fileindex);
+					foreach (explode(',', $object->otherlang) as $sublang) {
+						// Avoid to erase main alias file if $sublang is empty string
+						if (empty(trim($sublang))) continue;
+						$fileindexsub = $dirname.'/'.$sublang.'/index.php';
+
+						// Same indexcontent than previously but with ../ instead of ./ for master and tpl file include/require_once.
+						$relpath = '..';
+						$indexcontent = '<?php'."\n";
+						$indexcontent .= "// BEGIN PHP File generated to provide an index.php as Home Page or alias redirector - DO NOT MODIFY - It is just a generated wrapper.\n";
+						$indexcontent .= '$websitekey=basename(__DIR__); if (empty($websitepagefile)) $websitepagefile=__FILE__;'."\n";
+						$indexcontent .= "if (! defined('USEDOLIBARRSERVER') && ! defined('USEDOLIBARREDITOR')) { require_once '".$relpath."/master.inc.php'; } // Load master if not already loaded\n";
+						$indexcontent .= 'if (! empty($_GET[\'pageref\']) || ! empty($_GET[\'pagealiasalt\']) || ! empty($_GET[\'pageid\'])) {'."\n";
+						$indexcontent .= "	require_once DOL_DOCUMENT_ROOT.'/core/lib/website.lib.php';\n";
+						$indexcontent .= "	require_once DOL_DOCUMENT_ROOT.'/core/website.inc.php';\n";
+						$indexcontent .= '	redirectToContainer($_GET[\'pageref\'], $_GET[\'pagealiasalt\'], $_GET[\'pageid\']);'."\n";
+						$indexcontent .= "}\n";
+						$indexcontent .= "include_once '".$relpath."/".basename($filetpl)."'\n";	// use .. instead of .
+						$indexcontent .= '// END PHP ?>'."\n";
+						$result = file_put_contents($fileindexsub, $indexcontent);
+						if ($result === false) {
+							dol_syslog("Failed to write file ".$fileindexsub, LOG_WARNING);
+						}
+						if (!empty($conf->global->MAIN_UMASK)) {
+							@chmod($fileindexsub, octdec($conf->global->MAIN_UMASK));
+						}
+					}
+				}
+			}
+		}
 	} else {
 		$result1 = true;
 	}
@@ -491,7 +530,7 @@ function dolSaveReadme($file, $content)
 		@chmod($file, octdec($conf->global->MAIN_UMASK));
 	}
 
-		return $result;
+	return $result;
 }
 
 
@@ -545,9 +584,9 @@ function showWebsiteTemplates(Website $website)
 					while (($subdir = readdir($handle)) !== false) {
 						if (is_file($dirtheme."/".$subdir) && substr($subdir, 0, 1) <> '.'
 							&& substr($subdir, 0, 3) <> 'CVS' && preg_match('/\.zip$/i', $subdir)) {
-							$subdirwithoutzip = preg_replace('/\.zip$/i', '', $subdir);
+								$subdirwithoutzip = preg_replace('/\.zip$/i', '', $subdir);
 
-							// Disable not stable themes (dir ends with _exp or _dev)
+								// Disable not stable themes (dir ends with _exp or _dev)
 							if ($conf->global->MAIN_FEATURES_LEVEL < 2 && preg_match('/_dev$/i', $subdir)) {
 								continue;
 							}
@@ -555,38 +594,38 @@ function showWebsiteTemplates(Website $website)
 								continue;
 							}
 
-							print '<div class="inline-block" style="margin-top: 10px; margin-bottom: 10px; margin-right: 20px; margin-left: 20px;">';
+								print '<div class="inline-block" style="margin-top: 10px; margin-bottom: 10px; margin-right: 20px; margin-left: 20px;">';
 
-							$file = $dirtheme."/".$subdirwithoutzip.".jpg";
-							$url = DOL_URL_ROOT.'/viewimage.php?modulepart=doctemplateswebsite&file='.$subdirwithoutzip.".jpg";
+								$file = $dirtheme."/".$subdirwithoutzip.".jpg";
+								$url = DOL_URL_ROOT.'/viewimage.php?modulepart=doctemplateswebsite&file='.$subdirwithoutzip.".jpg";
 
 							if (!file_exists($file)) {
 								$url = DOL_URL_ROOT.'/public/theme/common/nophoto.png';
 							}
 
-							$originalfile = basename($file);
-							$entity = $conf->entity;
-							$modulepart = 'doctemplateswebsite';
-							$cache = '';
-							$title = $file;
+								$originalfile = basename($file);
+								$entity = $conf->entity;
+								$modulepart = 'doctemplateswebsite';
+								$cache = '';
+								$title = $file;
 
-							$ret = '';
-							$urladvanced = getAdvancedPreviewUrl($modulepart, $originalfile, 1, '&entity='.$entity);
+								$ret = '';
+								$urladvanced = getAdvancedPreviewUrl($modulepart, $originalfile, 1, '&entity='.$entity);
 							if (!empty($urladvanced)) {
 								$ret .= '<a class="'.$urladvanced['css'].'" target="'.$urladvanced['target'].'" mime="'.$urladvanced['mime'].'" href="'.$urladvanced['url'].'">';
 							} else {
 								$ret .= '<a href="'.DOL_URL_ROOT.'/viewimage.php?modulepart='.$modulepart.'&entity='.$entity.'&file='.urlencode($originalfile).'&cache='.$cache.'">';
 							}
-							print $ret;
-							print '<img class="img-skinthumb shadow" src="'.$url.'" border="0" alt="'.$title.'" title="'.$title.'" style="margin-bottom: 5px;">';
-							print '</a>';
+								print $ret;
+								print '<img class="img-skinthumb shadow" src="'.$url.'" border="0" alt="'.$title.'" title="'.$title.'" style="margin-bottom: 5px;">';
+								print '</a>';
 
-							print '<br>';
-							print $subdir.' ('.dol_print_size(dol_filesize($dirtheme."/".$subdir), 1, 1).')';
-							print '<br><a href="'.$_SERVER["PHP_SELF"].'?action=importsiteconfirm&website='.$website->ref.'&templateuserfile='.$subdir.'" class="button">'.$langs->trans("Load").'</a>';
-							print '</div>';
+								print '<br>';
+								print $subdir.' ('.dol_print_size(dol_filesize($dirtheme."/".$subdir), 1, 1).')';
+								print '<br><a href="'.$_SERVER["PHP_SELF"].'?action=importsiteconfirm&website='.$website->ref.'&templateuserfile='.$subdir.'" class="button">'.$langs->trans("Load").'</a>';
+								print '</div>';
 
-							$i++;
+								$i++;
 						}
 					}
 				}
diff --git a/htdocs/website/class/website.class.php b/htdocs/website/class/website.class.php
index 80a48048151..031419e53fd 100644
--- a/htdocs/website/class/website.class.php
+++ b/htdocs/website/class/website.class.php
@@ -786,7 +786,7 @@ class Website extends CommonObject
 
 				// Re-generates the index.php page to be the home page, and re-generates the wrapper.php
 				//--------------------------------------------------------------------------------------
-				$result = dolSaveIndexPage($pathofwebsitenew, $fileindex, $filetpl, $filewrapper);
+				$result = dolSaveIndexPage($pathofwebsitenew, $fileindex, $filetpl, $filewrapper, $object);
 			}
 		}
 
@@ -1275,7 +1275,7 @@ class Website extends CommonObject
 
 		// Regenerate index page to point to the new index page
 		$pathofwebsite = $conf->website->dir_output.'/'.$object->ref;
-		dolSaveIndexPage($pathofwebsite, $pathofwebsite.'/index.php', $pathofwebsite.'/page'.$object->fk_default_home.'.tpl.php', $pathofwebsite.'/wrapper.php');
+		dolSaveIndexPage($pathofwebsite, $pathofwebsite.'/index.php', $pathofwebsite.'/page'.$object->fk_default_home.'.tpl.php', $pathofwebsite.'/wrapper.php', $object);
 
 		if ($error) {
 			$this->db->rollback();
@@ -1287,7 +1287,7 @@ class Website extends CommonObject
 	}
 
 	/**
-	 * Rebuild all files of a containers of a website. Rebuild also the wrapper.php file. TODO Add other files too.
+	 * Rebuild all files of all the pages/containers of a website. Rebuild also the index and wrapper.php file.
 	 * Note: Files are already regenerated during importWebSite so this function is useless when importing a website.
 	 *
 	 * @return 	int						<0 if KO, >=0 if OK
@@ -1339,12 +1339,12 @@ class Website extends CommonObject
 				$aliasesarray[] = $objectpagestatic->pageurl;
 			}
 
-			// Regenerate all aliases pages (pages with a natural name)
+			// Regenerate also all aliases pages (pages with a natural name) by calling dolSavePageAlias()
 			if (is_array($aliasesarray)) {
 				foreach ($aliasesarray as $aliasshortcuttocreate) {
 					if (trim($aliasshortcuttocreate)) {
 						$filealias = $conf->website->dir_output.'/'.$object->ref.'/'.trim($aliasshortcuttocreate).'.php';
-						$result = dolSavePageAlias($filealias, $object, $objectpagestatic);
+						$result = dolSavePageAlias($filealias, $object, $objectpagestatic);	// This includes also a copy into sublanguage directories.
 						if (!$result) {
 							$this->errors[] = 'Failed to write file '.basename($filealias);
 							$error++;
@@ -1357,10 +1357,15 @@ class Website extends CommonObject
 		}
 
 		if (!$error) {
-			// Save wrapper.php
+			// Save index.php and wrapper.php
 			$pathofwebsite = $conf->website->dir_output.'/'.$object->ref;
+			$fileindex = $pathofwebsite.'/index.php';
+			$filetpl = '';
+			if ($object->fk_default_home) {
+				$filetpl = $pathofwebsite.'/page'.$object->fk_default_home.'.tpl.php';
+			}
 			$filewrapper = $pathofwebsite.'/wrapper.php';
-			dolSaveIndexPage($pathofwebsite, '', '', $filewrapper);
+			dolSaveIndexPage($pathofwebsite, $fileindex, $filetpl, $filewrapper, $object);	// This includes also a version of index.php into sublanguage directories
 		}
 
 		if ($error) {
diff --git a/htdocs/website/index.php b/htdocs/website/index.php
index 8ac4d612264..12292cf2fd8 100644
--- a/htdocs/website/index.php
+++ b/htdocs/website/index.php
@@ -1087,7 +1087,7 @@ if ($action == 'addcontainer' && $usercanedit) {
 				$filetpl = $pathofwebsite.'/page'.$pageid.'.tpl.php';
 
 				// Generate the index.php page (to be the home page) and the wrapper.php file
-				$result = dolSaveIndexPage($pathofwebsite, $fileindex, $filetpl, $filewrapper);
+				$result = dolSaveIndexPage($pathofwebsite, $fileindex, $filetpl, $filewrapper, $object);
 
 				if ($result <= 0) {
 					setEventMessages('Failed to write file '.$fileindex, null, 'errors');
@@ -1580,7 +1580,7 @@ if ($action == 'updatecss' && $usercanedit) {
 
 
 			// Save wrapper.php
-			$result = dolSaveIndexPage($pathofwebsite, '', '', $filewrapper);
+			$result = dolSaveIndexPage($pathofwebsite, '', '', $filewrapper, $object);
 
 
 			// Message if no error
@@ -1621,7 +1621,7 @@ if ($action == 'setashome' && $usercanedit) {
 		$filetpl = $pathofwebsite.'/page'.$pageid.'.tpl.php';
 
 		// Generate the index.php page to be the home page
-		$result = dolSaveIndexPage($pathofwebsite, $fileindex, $filetpl, $filewrapper);
+		$result = dolSaveIndexPage($pathofwebsite, $fileindex, $filetpl, $filewrapper, $object);
 
 		if ($result) {
 			setEventMessages($langs->trans("Saved"), null, 'mesgs');
@@ -2181,7 +2181,7 @@ if ($action == 'regeneratesite' && $usercanedit) {
 	$pathtomediasinwebsite = $pathofwebsite.'/medias';
 	if (!is_link(dol_osencode($pathtomediasinwebsite))) {
 		dol_syslog("Create symlink for ".$pathtomedias." into name ".$pathtomediasinwebsite);
-		dol_mkdir(dirname($pathtomediasinwebsite)); // To be sure dir for website exists
+		dol_mkdir(dirname($pathtomediasinwebsite)); // To be sure that the directory for website exists
 		$result = symlink($pathtomedias, $pathtomediasinwebsite);
 		if (!$result) {
 			setEventMessages($langs->trans("ErrorFieldToCreateSymLinkToMedias", $pathtomediasinwebsite, $pathtomedias), null, 'errors');