From d01e1a15db281ae0377eac33c1142a67402e3a45 Mon Sep 17 00:00:00 2001
From: leiweibau <105860611+leiweibau@users.noreply.github.com>
Date: Mon, 4 Jul 2022 22:58:56 +0200
Subject: [PATCH] Add Multi-Language Support (in progress)

approx. 60-70% are already translated. At the moment 2 languages are included. English and German
---
 front/deviceDetails.php                |  10 +-
 front/devices.php                      |  67 ++++++----
 front/events.php                       |  47 ++++---
 front/maintenance.php                  | 176 ++++++++++++++++++-------
 front/php/templates/header.php         |  21 ++-
 front/php/templates/language/de_de.php | 152 +++++++++++++++++++++
 front/php/templates/language/en_us.php | 151 +++++++++++++++++++++
 front/presence.php                     |  44 ++++---
 8 files changed, 538 insertions(+), 130 deletions(-)
 create mode 100644 front/php/templates/language/de_de.php
 create mode 100644 front/php/templates/language/en_us.php

diff --git a/front/deviceDetails.php b/front/deviceDetails.php
index 83ae3c69..aa7fb722 100644
--- a/front/deviceDetails.php
+++ b/front/deviceDetails.php
@@ -95,7 +95,7 @@
           <div id="navDevice" class="nav-tabs-custom">
             <ul class="nav nav-tabs" style="fon t-size:16px;">
               <li> <a id="tabDetails"  href="#panDetails"  data-toggle="tab"> Details  </a></li>
-              <li> <a id="tabNmap"     href="#panNmap"     data-toggle="tab"> nmap   </a></li>
+              <li> <a id="tabNmap"     href="#panNmap"     data-toggle="tab"> Nmap   </a></li>
               <li> <a id="tabSessions" href="#panSessions" data-toggle="tab"> Sessions </a></li>
               <li> <a id="tabPresence" href="#panPresence" data-toggle="tab"> Presence </a></li>
               <li> <a id="tabEvents"   href="#panEvents"   data-toggle="tab"> Events   </a></li>
@@ -432,7 +432,7 @@
 
 
               <div class="tab-pane fade" id="panNmap">
-                <h4 class="">nmap Scans</h4>
+                <h4 class="">Nmap Scans</h4>
                 <div style="width:100%; text-align: center;">
                   <script>
                       setTimeout(function(){
@@ -448,9 +448,9 @@
                 
                   <div style="margin-top: 20px; text-align: left;">
                     <ul style="padding:20px;">
-                    <li>Fast Scan: Scan fewer ports than the default scan (a few seconds)</li>
-                    <li>Default Scan: By default, Nmap scans the top 1,000 ports for each scan protocol requested. This catches roughly 93% of the TCP ports and 49% of the UDP ports. (about 5 sconds)</li>
-                    <li>Detailed Scan: Default scan with enabled OS detection, version detection, script scanning and traceroute (up to 30 seconds and more)</li>
+                    <li>Fast Scan: Scan fewer ports (100) than the default scan (a few seconds)</li>
+                    <li>Default Scan: Nmap scans the top 1,000 ports for each scan protocol requested. This catches roughly 93% of the TCP ports and 49% of the UDP ports. (about 5 seconds)</li>
+                    <li>Detailed Scan: Default scan with enabled OS detection, version detection, script scanning and traceroute (up to 30 seconds or more)</li>
                   </ul>
                   </div>
                 </div>
diff --git a/front/devices.php b/front/devices.php
index 664061dc..6c312137 100644
--- a/front/devices.php
+++ b/front/devices.php
@@ -17,7 +17,7 @@
 <!-- Content header--------------------------------------------------------- -->
     <section class="content-header">
       <h1 id="pageTitle">
-         Devices
+           <?php echo $pia_lang['Device_Title'];?>
       </h1>
     </section>
 
@@ -32,7 +32,7 @@
             <div class="small-box bg-aqua pa-small-box-aqua pa-small-box-2">
               <div class="inner"> <h3 id="devicesAll"> -- </h3> </div>
               <div class="icon"> <i class="fa fa-laptop text-aqua-20"></i> </div>
-              <div class="small-box-footer pa-small-box-footer"> All Devices <i class="fa fa-arrow-circle-right"></i> </div>
+              <div class="small-box-footer pa-small-box-footer"> <?php echo $pia_lang['Device_Shortcut_AllDevices'];?> <i class="fa fa-arrow-circle-right"></i> </div>
             </div>
           </a>
         </div>
@@ -43,7 +43,7 @@
             <div class="small-box bg-green pa-small-box-green pa-small-box-2">
               <div class="inner"> <h3 id="devicesConnected"> -- </h3> </div>
               <div class="icon"> <i class="fa fa-plug text-green-20"></i> </div>
-              <div class="small-box-footer pa-small-box-footer"> Connected <i class="fa fa-arrow-circle-right"></i> </div>
+              <div class="small-box-footer pa-small-box-footer"> <?php echo $pia_lang['Device_Shortcut_Connected'];?> <i class="fa fa-arrow-circle-right"></i> </div>
             </div>
           </a>
         </div>
@@ -54,7 +54,7 @@
             <div  class="small-box bg-yellow pa-small-box-yellow pa-small-box-2">
               <div class="inner"> <h3 id="devicesFavorites"> -- </h3> </div>
               <div class="icon"> <i class="fa fa-star text-yellow-20"></i> </div>
-              <div class="small-box-footer pa-small-box-footer"> Favorites <i class="fa fa-arrow-circle-right"></i> </div>
+              <div class="small-box-footer pa-small-box-footer"> <?php echo $pia_lang['Device_Shortcut_Favorites'];?> <i class="fa fa-arrow-circle-right"></i> </div>
             </div>
           </a>
         </div>
@@ -65,7 +65,7 @@
             <div  class="small-box bg-yellow pa-small-box-yellow pa-small-box-2">
               <div class="inner"> <h3 id="devicesNew"> -- </h3> </div>
               <div class="icon"> <i class="ion ion-plus-round text-yellow-20"></i> </div>
-              <div class="small-box-footer pa-small-box-footer"> New Devices <i class="fa fa-arrow-circle-right"></i> </div>
+              <div class="small-box-footer pa-small-box-footer"> <?php echo $pia_lang['Device_Shortcut_NewDevices'];?> <i class="fa fa-arrow-circle-right"></i> </div>
             </div>
           </a>
         </div>
@@ -76,7 +76,7 @@
             <div  class="small-box bg-red pa-small-box-red pa-small-box-2">
               <div class="inner"> <h3 id="devicesDown"> -- </h3> </div>
               <div class="icon"> <i class="fa fa-warning text-red-20"></i> </div>
-              <div class="small-box-footer pa-small-box-footer"> Down Alerts <i class="fa fa-arrow-circle-right"></i> </div>
+              <div class="small-box-footer pa-small-box-footer"> <?php echo $pia_lang['Device_Shortcut_DownAlerts'];?> <i class="fa fa-arrow-circle-right"></i> </div>
             </div>
           </a>
         </div>
@@ -87,7 +87,7 @@
             <div  class="small-box bg-gray pa-small-box-gray pa-small-box-2">
               <div class="inner"> <h3 id="devicesArchived"> -- </h3> </div>
               <div class="icon"> <i class="fa fa-eye-slash text-gray-20"></i> </div>
-              <div class="small-box-footer pa-small-box-footer"> Archived <i class="fa fa-arrow-circle-right"></i> </div>
+              <div class="small-box-footer pa-small-box-footer"> <?php echo $pia_lang['Device_Shortcut_Archived'];?> <i class="fa fa-arrow-circle-right"></i> </div>
             </div>
           </a>
         </div>
@@ -110,19 +110,19 @@
               <table id="tableDevices" class="table table-bordered table-hover table-striped">
                 <thead>
                 <tr>
-                  <th>Name</th>
-                  <th>Owner</th>
-                  <th>Type</th>
-                  <th>Favorite</th>
-                  <th>Group</th>
-                  <th>First Session</th>
-                  <th>Last Session</th>
-                  <th>Last IP</th>
-                  <th>MAC</th>
-                  <th>Status</th>
-                  <th>MAC</th>
-                  <th>Last IP Order</th>
-                  <th>Rowid</th>
+                  <th><?php echo $pia_lang['Device_TableHead_Name'];?></th>
+                  <th><?php echo $pia_lang['Device_TableHead_Owner'];?></th>
+                  <th><?php echo $pia_lang['Device_TableHead_Type'];?></th>
+                  <th><?php echo $pia_lang['Device_TableHead_Favorite'];?></th>
+                  <th><?php echo $pia_lang['Device_TableHead_Group'];?></th>
+                  <th><?php echo $pia_lang['Device_TableHead_FirstSession'];?></th>
+                  <th><?php echo $pia_lang['Device_TableHead_LastSession'];?></th>
+                  <th><?php echo $pia_lang['Device_TableHead_LastIP'];?></th>
+                  <th><?php echo $pia_lang['Device_TableHead_MAC'];?></th>
+                  <th><?php echo $pia_lang['Device_TableHead_Status'];?></th>
+                  <th><?php echo $pia_lang['Device_TableHead_MAC'];?></th>
+                  <th><?php echo $pia_lang['Device_TableHead_LastIPOrder'];?></th>
+                  <th><?php echo $pia_lang['Device_TableHead_Rowid'];?></th>
                 </tr>
                 </thead>
               </table>
@@ -201,8 +201,9 @@ function initializeDatatable () {
   $('#tableDevices').DataTable({
     'paging'       : true,
     'lengthChange' : true,
-    'lengthMenu'   : [[10, 25, 50, 100, 500, -1], [10, 25, 50, 100, 500, 'All']],
+    'lengthMenu'   : [[10, 25, 50, 100, 500, -1], [10, 25, 50, 100, 500, '<?php echo $pia_lang['Device_Tablelenght_all'];?>']],
     'searching'    : true,
+
     'ordering'     : true,
     'info'         : true,
     'autoWidth'    : false,
@@ -271,7 +272,14 @@ function initializeDatatable () {
     'processing'  : true,
     'language'    : {
       processing: '<table> <td width="130px" align="middle">Loading...</td><td><i class="ion ion-ios-loop-strong fa-spin fa-2x fa-fw"></td> </table>',
-      emptyTable: 'No data'
+      emptyTable: 'No data',
+      "lengthMenu": "<?php echo $pia_lang['Device_Tablelenght'];?>",
+      "search":     "<?php echo $pia_lang['Device_Searchbox'];?>: ",
+      "paginate": {
+          "next":       "<?php echo $pia_lang['Device_Table_nav_next'];?>",
+          "previous":   "<?php echo $pia_lang['Device_Table_nav_prev'];?>"
+      },
+      "info":           "<?php echo $pia_lang['Device_Table_info'];?>",
     }
   });
 
@@ -288,6 +296,7 @@ function initializeDatatable () {
   $('#tableDevices').on( 'search.dt', function () {
     setCookie ('devicesList', JSON.stringify (table.column(12, { 'search': 'applied' }).data().toArray()) );
   } );
+
 };
 
 
@@ -320,13 +329,13 @@ function getDevicesList (status) {
 
   // Define color & title for the status selected
   switch (deviceStatus) {
-    case 'all':        tableTitle = 'All Devices';         color = 'aqua';    break;
-    case 'connected':  tableTitle = 'Connected Devices';   color = 'green';   break;
-    case 'favorites':  tableTitle = 'Favorites';           color = 'yellow';  break;
-    case 'new':        tableTitle = 'New Devices';         color = 'yellow';  break;
-    case 'down':       tableTitle = 'Down Alerts';         color = 'red';     break;
-    case 'archived':   tableTitle = 'Archived Devices';    color = 'gray';    break;
-    default:           tableTitle = 'Devices';             color = 'gray';    break;
+    case 'all':        tableTitle = '<?php echo $pia_lang['Device_Shortcut_AllDevices']?>';  color = 'aqua';    break;
+    case 'connected':  tableTitle = '<?php echo $pia_lang['Device_Shortcut_Connected']?>';   color = 'green';   break;
+    case 'favorites':  tableTitle = '<?php echo $pia_lang['Device_Shortcut_Favorites']?>';   color = 'yellow';  break;
+    case 'new':        tableTitle = '<?php echo $pia_lang['Device_Shortcut_NewDevices']?>';  color = 'yellow';  break;
+    case 'down':       tableTitle = '<?php echo $pia_lang['Device_Shortcut_DownAlerts']?>';  color = 'red';     break;
+    case 'archived':   tableTitle = '<?php echo $pia_lang['Device_Shortcut_Archived']?>';    color = 'gray';    break;
+    default:           tableTitle = '<?php echo $pia_lang['Device_Shortcut_Devices']?>';     color = 'gray';    break;
   } 
 
   // Set title and color
diff --git a/front/events.php b/front/events.php
index 9fbb916b..3fff0a41 100644
--- a/front/events.php
+++ b/front/events.php
@@ -17,17 +17,17 @@
 <!-- Content header--------------------------------------------------------- -->
     <section class="content-header">
       <h1 id="pageTitle">
-         Events
+         <?php echo $pia_lang['Events_Title'];?>
       </h1>
 
       <!-- period selector -->
       <span class="breadcrumb" style="top: 0px;">
         <select class="form-control" id="period" onchange="javascript: periodChanged();">
-          <option value="1 day">Today</option>
-          <option value="7 days">Last Week</option>
-          <option value="1 month" selected>Last Month</option>
-          <option value="1 year">Last Year</option>
-          <option value="100 years">All info</option>
+          <option value="1 day"><?php echo $pia_lang['Events_Periodselect_today'];?></option>
+          <option value="7 days"><?php echo $pia_lang['Events_Periodselect_LastWeek'];?></option>
+          <option value="1 month" selected><?php echo $pia_lang['Events_Periodselect_LastMonth'];?></option>
+          <option value="1 year"><?php echo $pia_lang['Events_Periodselect_LastYear'];?></option>
+          <option value="100 years"><?php echo $pia_lang['Events_Periodselect_All'];?></option>
         </select>
       </span>
     </section>
@@ -43,7 +43,7 @@
             <div class="small-box bg-aqua pa-small-box-aqua pa-small-box-2">
               <div class="inner"> <h3 id="eventsAll"> -- </h3> </div>
               <div class="icon"> <i class="fa fa-bolt text-aqua-20"></i> </div>
-              <div class="small-box-footer pa-small-box-footer"> All events <i class="fa fa-arrow-circle-right"></i> </div>
+              <div class="small-box-footer pa-small-box-footer"> <?php echo $pia_lang['Events_Shortcut_AllEvents'];?> <i class="fa fa-arrow-circle-right"></i> </div>
             </div>
           </a>
         </div>
@@ -54,7 +54,7 @@
             <div class="small-box bg-green pa-small-box-green pa-small-box-2">
               <div class="inner"> <h3 id="eventsSessions"> -- </h3> </div>
               <div class="icon"> <i class="fa fa-plug text-green-20"></i> </div>
-              <div class="small-box-footer pa-small-box-footer"> Sessions <i class="fa fa-arrow-circle-right"></i> </div>
+              <div class="small-box-footer pa-small-box-footer"> <?php echo $pia_lang['Events_Shortcut_Sessions'];?> <i class="fa fa-arrow-circle-right"></i> </div>
             </div>
           </a>
         </div>
@@ -65,7 +65,7 @@
             <div  class="small-box bg-yellow pa-small-box-yellow pa-small-box-2">
               <div class="inner"> <h3 id="eventsMissing"> -- </h3> </div>
               <div class="icon"> <i class="fa fa-exchange text-yellow-20"></i> </div>
-              <div class="small-box-footer pa-small-box-footer"> Missing Sessions <i class="fa fa-arrow-circle-right"></i> </div>
+              <div class="small-box-footer pa-small-box-footer"> <?php echo $pia_lang['Events_Shortcut_MissSessions'];?> <i class="fa fa-arrow-circle-right"></i> </div>
             </div>
           </a>
         </div>
@@ -76,7 +76,7 @@
             <div  class="small-box bg-yellow pa-small-box-yellow pa-small-box-2">
               <div class="inner"> <h3 id="eventsVoided"> -- </h3> </div>
               <div class="icon text-aqua-20"> <i class="fa fa-exclamation-circle text-yellow-20"></i> </div>
-              <div class="small-box-footer pa-small-box-footer"> Voided Sessions <i class="fa fa-arrow-circle-right"></i> </div>
+              <div class="small-box-footer pa-small-box-footer"> <?php echo $pia_lang['Events_Shortcut_VoidSessions'];?> <i class="fa fa-arrow-circle-right"></i> </div>
             </div>
           </a>
         </div>
@@ -87,7 +87,7 @@
             <div  class="small-box bg-yellow pa-small-box-yellow pa-small-box-2">
               <div class="inner"> <h3 id="eventsNewDevices"> -- </h3> </div>
               <div class="icon"> <i class="ion ion-plus-round text-yellow-20"></i> </div>
-              <div class="small-box-footer pa-small-box-footer"> New Devices <i class="fa fa-arrow-circle-right"></i> </div>
+              <div class="small-box-footer pa-small-box-footer"> <?php echo $pia_lang['Events_Shortcut_NewDevices'];?> <i class="fa fa-arrow-circle-right"></i> </div>
             </div>
           </a>
         </div>
@@ -98,7 +98,7 @@
             <div  class="small-box bg-red pa-small-box-red pa-small-box-2">
               <div class="inner"> <h3 id="eventsDown"> -- </h3> </div>
               <div class="icon"> <i class="fa fa-warning text-red-20"></i> </div>
-              <div class="small-box-footer pa-small-box-footer"> Down Alerts <i class="fa fa-arrow-circle-right"></i> </div>
+              <div class="small-box-footer pa-small-box-footer"> <?php echo $pia_lang['Events_Shortcut_DownAlerts'];?> <i class="fa fa-arrow-circle-right"></i> </div>
             </div>
           </a>
         </div>
@@ -245,7 +245,14 @@ function initializeDatatable () {
     'processing'  : true,
     'language'    : {
       processing: '<table><td width="130px" align="middle">Loading...</td><td><i class="ion ion-ios-loop-strong fa-spin fa-2x fa-fw"></td></table>',
-      emptyTable: 'No data'
+      emptyTable: 'No data',
+      "lengthMenu": "<?php echo $pia_lang['Events_Tablelenght'];?>",
+      "search":     "<?php echo $pia_lang['Events_Searchbox'];?>: ",
+      "paginate": {
+          "next":       "<?php echo $pia_lang['Events_Table_nav_next'];?>",
+          "previous":   "<?php echo $pia_lang['Events_Table_nav_prev'];?>"
+      },
+      "info":           "<?php echo $pia_lang['Events_Table_info'];?>",
     }
   });
 
@@ -297,13 +304,13 @@ function getEvents (p_eventsType) {
 
   // Define color & title for the status selected
   switch (eventsType) {
-    case 'all':       tableTitle = 'All Events';          color = 'aqua';    sesionCols = false;  break;
-    case 'sessions':  tableTitle = 'Sessions';            color = 'green';   sesionCols = true;   break;
-    case 'missing':   tableTitle = 'Missing Events';      color = 'yellow';  sesionCols = true;   break;
-    case 'voided':    tableTitle = 'Voided Events';       color = 'yellow';  sesionCols = false;  break;
-    case 'new':       tableTitle = 'New Devices Events';  color = 'yellow';  sesionCols = false;  break;
-    case 'down':      tableTitle = 'Down Alerts';         color = 'red';     sesionCols = false;  break;
-    default:          tableTitle = 'Events';              boxClass = '';     sesionCols = false;  break;
+    case 'all':       tableTitle = '<?php echo $pia_lang['Events_Shortcut_AllEvents'];?>';      color = 'aqua';    sesionCols = false;  break;
+    case 'sessions':  tableTitle = '<?php echo $pia_lang['Events_Shortcut_Sessions'];?>';       color = 'green';   sesionCols = true;   break;
+    case 'missing':   tableTitle = '<?php echo $pia_lang['Events_Shortcut_MissSessions'];?>';   color = 'yellow';  sesionCols = true;   break;
+    case 'voided':    tableTitle = '<?php echo $pia_lang['Events_Shortcut_VoidSessions'];?>';   color = 'yellow';  sesionCols = false;  break;
+    case 'new':       tableTitle = '<?php echo $pia_lang['Events_Shortcut_NewDevices'];?>';     color = 'yellow';  sesionCols = false;  break;
+    case 'down':      tableTitle = '<?php echo $pia_lang['Events_Shortcut_DownAlerts'];?>';     color = 'red';     sesionCols = false;  break;
+    default:          tableTitle = '<?php echo $pia_lang['Events_Shortcut_Events'];?>';         boxClass = '';     sesionCols = false;  break;
   } 
 
   // Set title and color
diff --git a/front/maintenance.php b/front/maintenance.php
index 27fe8792..c44ff6f0 100644
--- a/front/maintenance.php
+++ b/front/maintenance.php
@@ -23,7 +23,7 @@
     <section class="content-header">
     <?php require 'php/templates/notification.php'; ?>
       <h1 id="pageTitle">
-         Maintenance tools
+         <?php echo $pia_lang['Maintenance_Title'];?>
       </h1>
     </section>
 
@@ -33,28 +33,38 @@
 
   <?php
 
+// Size and last mod of DB ------------------------------------------------------
+
 $pia_db = str_replace('front', 'db', getcwd()).'/pialert.db';
-//echo $pia_db;
-$pia_db_size = number_format(filesize($pia_db),0,",",".") . ' Byte';
-//echo $pia_db_size;
+$pia_db_size = number_format((filesize($pia_db) / 1000000),2,",",".") . ' MB';
 $pia_db_mod = date ("F d Y H:i:s", filemtime($pia_db));
 
+// Pause Arp Scan ---------------------------------------------------------------
 
 if (!file_exists('../db/setting_stoparpscan')) {
   $execstring = 'ps -f -u root | grep "sudo arp-scan" 2>&1';
   $pia_arpscans = "";
   exec($execstring, $pia_arpscans);
-  $pia_arpscans_result = sizeof($pia_arpscans).' scan(s) currently running';
+  $pia_arpscans_result = sizeof($pia_arpscans).' '.$pia_lang['Maintenance_arp_status_on'];
 } else {
-  $pia_arpscans_result = '<span style="color:red;">arp-scan is currently disabled</span>';
+  $pia_arpscans_result = '<span style="color:red;">arp-Scan '.$pia_lang['Maintenance_arp_status_off'] .'</span>';
 }
 
+// Count and Calc Backups -------------------------------------------------------
+
 $Pia_Archive_Path = str_replace('front', 'db', getcwd()).'/';
 $Pia_Archive_count = 0;
+$Pia_Archive_diskusage = 0;
 $files = glob($Pia_Archive_Path."*.zip");
 if ($files){
  $Pia_Archive_count = count($files);
 }
+foreach ($files as $result) {
+    $Pia_Archive_diskusage = $Pia_Archive_diskusage + filesize($result);
+}
+$Pia_Archive_diskusage = number_format(($Pia_Archive_diskusage / 1000000),2,",",".") . ' MB';
+
+// Find latest Backup for restore -----------------------------------------------
 
 $latestfiles = glob($Pia_Archive_Path."*.zip");
 natsort($latestfiles);
@@ -62,17 +72,19 @@ $latestfiles = array_reverse($latestfiles,False);
 $latestbackup = $latestfiles[0];
 $latestbackup_date = date ("Y-m-d H:i:s", filemtime($latestbackup));
 
-if (submit) {
+// Skin selector -----------------------------------------------------------------
+
+if (submit && isset($_POST['skinselector_set'])) {
   $pia_skin_set_dir = '../db/';
   $pia_skin_selector = htmlspecialchars($_POST['skinselector']);
   $pia_installed_skins = array('skin-black-light', 'skin-black', 'skin-blue-light', 'skin-blue', 'skin-green-light', 'skin-green', 'skin-purple-light', 'skin-purple', 'skin-red-light', 'skin-red', 'skin-yellow-light', 'skin-yellow',);
   if (in_array($pia_skin_selector, $pia_installed_skins)) {
     foreach ($pia_installed_skins as $file) {
-      unlink ($pia_skin_set_dir.'/'.$file);
+      unlink ($pia_skin_set_dir.'/setting_'.$file);
     }
 
     foreach ($pia_installed_skins as $file) {
-      if (file_exists($pia_skin_set_dir.'/'.$file)) {
+      if (file_exists($pia_skin_set_dir.'/setting_'.$file)) {
           $pia_skin_error = True;
           break;
       } else {
@@ -81,7 +93,7 @@ if (submit) {
     }
 
     if ($pia_skin_error == False) {
-      $testskin = fopen($pia_skin_set_dir.$pia_skin_selector, 'w');
+      $testskin = fopen($pia_skin_set_dir.'setting_'.$pia_skin_selector, 'w');
       $pia_skin_test = '';
       echo("<meta http-equiv='refresh' content='1'>"); 
     } else {
@@ -90,35 +102,68 @@ if (submit) {
     }    
   }
 }
+
+
+
+if (submit && isset($_POST['langselector_set'])) {
+  $pia_lang_set_dir = '../db/';
+  $pia_lang_selector = htmlspecialchars($_POST['langselector']);
+  $pia_installed_langs = array('en_us', 'de_de');
+  if (in_array($pia_lang_selector, $pia_installed_langs)) {
+    foreach ($pia_installed_langs as $file) {
+      unlink ($pia_lang_set_dir.'/setting_language_'.$file);
+    }
+
+    foreach ($pia_installed_langs as $file) {
+      if (file_exists($pia_lang_set_dir.'/setting_language_'.$file)) {
+          $pia_lang_error = True;
+          break;
+      } else {
+          $pia_lang_error = False;
+      }
+    }
+
+    if ($pia_lang_error == False) {
+      $testlang = fopen($pia_lang_set_dir.'setting_language_'.$pia_lang_selector, 'w');
+      $pia_lang_test = '';
+      echo("<meta http-equiv='refresh' content='1'>"); 
+    } else {
+      $pia_lang_test = '';
+      echo("<meta http-equiv='refresh' content='1'>");
+    }    
+  }
+}
+
+
   ?>
 
 <div class="db_info_table">
     <div class="db_info_table_row">
-        <div class="db_info_table_cell">Database-Path</div>
+        <div class="db_info_table_cell" style="min-width: 140px"><?php echo $pia_lang['Maintenance_database_path'];?></div>
         <div class="db_info_table_cell">
             <?php echo $pia_db;?>
         </div>
     </div>
     <div class="db_info_table_row">
-        <div class="db_info_table_cell">Database-Size</div>
+        <div class="db_info_table_cell"><?php echo $pia_lang['Maintenance_database_size'];?></div>
         <div class="db_info_table_cell">
             <?php echo $pia_db_size;?>
         </div>
     </div>
     <div class="db_info_table_row">
-        <div class="db_info_table_cell">last Modification</div>
+        <div class="db_info_table_cell"><?php echo $pia_lang['Maintenance_database_lastmod'];?></div>
         <div class="db_info_table_cell">
             <?php echo $pia_db_mod;?>
         </div>
     </div>
     <div class="db_info_table_row">
-        <div class="db_info_table_cell">DB Backup</div>
+        <div class="db_info_table_cell"><?php echo $pia_lang['Maintenance_database_backup'];?></div>
         <div class="db_info_table_cell">
-            <?php echo $Pia_Archive_count.' backups where found';?>
+            <?php echo $Pia_Archive_count.' '.$pia_lang['Maintenance_database_backup_found'].' / '.$pia_lang['Maintenance_database_backup_total'].': '.$Pia_Archive_diskusage;?>
         </div>
     </div>
     <div class="db_info_table_row">
-        <div class="db_info_table_cell">Scan Status (arp)</div>
+        <div class="db_info_table_cell"><?php echo $pia_lang['Maintenance_arp_status'];?></div>
         <div class="db_info_table_cell">
             <?php echo $pia_arpscans_result;?></div>
     </div>
@@ -127,11 +172,11 @@ if (submit) {
 <form method="post" action="maintenance.php">
 <div class="db_info_table">
     <div class="db_info_table_row">
-        <div class="db_info_table_cell" style="height:50px; text-align:center; vertical-align: middle;">
-            <div style="display: inline-block; margin-right: 10px;">Theme Selection:</div>
+        <div class="db_info_table_cell" style="padding-left: 5px; height:50px; text-align:center; vertical-align: middle;">
+            <div style="display: inline-block; margin-right: 10px;"><?php echo $pia_lang['Maintenance_themeselector_lable'];?>:</div>
             <div style="display: inline-block;">
                 <select name="skinselector">
-                    <option value="">--Choose a theme--</option>
+                    <option value=""><?php echo $pia_lang['Maintenance_themeselector_empty'];?></option>
                     <option value="skin-black-light">black light</option>
                     <option value="skin-black">black</option>
                     <option value="skin-blue-light">blue light</option>
@@ -145,64 +190,95 @@ if (submit) {
                     <option value="skin-yellow-light">yellow light</option>
                     <option value="skin-yellow">yellow</option>
                 </select></div>
-            <div style="display: inline-block;"><input type="submit" value="Set">
+            <div style="display: inline-block;"><input type="submit" name="skinselector_set" value="Okay">
                 <?php echo $pia_skin_test; ?>
             </div>
         </div>
     </div>
+    <div class="db_info_table_row">
+        <div class="db_info_table_cell" style="padding: 10px; height:40px; text-align:center; vertical-align: middle;">
+            <?php echo $pia_lang['Maintenance_themeselector_text'];?>
+        </div>
+    </div>
 </div>
 </form>
 
+
+<form method="post" action="maintenance.php">
+<div class="db_info_table">
+    <div class="db_info_table_row">
+        <div class="db_info_table_cell" style="padding-left: 5px; height:50px; text-align:center; vertical-align: middle;">
+            <div style="display: inline-block; margin-right: 10px;"><?php echo $pia_lang['Maintenance_lang_selector_lable'];?>:</div>
+            <div style="display: inline-block;">
+                <select name="langselector">
+                    <option value=""><?php echo $pia_lang['Maintenance_lang_selector_empty'];?></option>
+                    <option value="en_us"><?php echo $pia_lang['Maintenance_lang_en_us'];?></option>
+                    <option value="de_de"><?php echo $pia_lang['Maintenance_lang_de_de'];?></option>
+                </select></div>
+            <div style="display: inline-block;"><input type="submit" name="langselector_set" value="Okay">
+                <?php echo $pia_lang_test; ?>
+            </div>
+        </div>
+    </div>
+    <div class="db_info_table_row">
+        <div class="db_info_table_cell" style="padding: 10px; height:40px; text-align:center; vertical-align: middle;">
+            <?php echo $pia_lang['Maintenance_lang_selector_text'];?>
+        </div>
+    </div>
+</div>
+</form>
+
+
+
+
 <div class="db_info_table">
     <div class="db_info_table_row">
         <div class="db_tools_table_cell_a" style="">
-            <button type="button" class="btn btn-default pa-btn pa-btn-delete bg-green dbtools-button" id="btnPiaEnableDarkmode" style="border-top: solid 3px #00a65a;" onclick="askPiaEnableDarkmode()">Toggle Modes (Dark/Light)</button>
+            <button type="button" class="btn btn-default pa-btn pa-btn-delete bg-green dbtools-button" id="btnPiaEnableDarkmode" style="border-top: solid 3px #00a65a;" onclick="askPiaEnableDarkmode()"><?php echo $pia_lang['Maintenance_Tool_darkmode'];?></button>
         </div>
-        <div class="db_tools_table_cell_b" style="">Toggle between dark mode and light mode. If the switch does not work properly, try to clear the browser cache.</div>
+        <div class="db_tools_table_cell_b" style=""><?php echo $pia_lang['Maintenance_Tool_darkmode_text'];?></div>
+    </div>
+    <div class="db_info_table_row">
+        <div class="db_tools_table_cell_a">
+            <button type="button" class="btn btn-default pa-btn pa-btn-delete bg-yellow dbtools-button" id="btnPiaToggleArpScan" style="border-top: solid 3px #ffd080;" onclick="askPiaToggleArpScan()"><?php echo $pia_lang['Maintenance_Tool_arpscansw'];?></button>
+        </div>
+        <div class="db_tools_table_cell_b" style=""><?php echo $pia_lang['Maintenance_Tool_arpscansw_text'];?></div>
     </div>
     <div class="db_info_table_row">
         <div class="db_tools_table_cell_a" style="">
-            <button type="button" class="btn btn-default pa-btn pa-btn-delete bg-yellow dbtools-button" id="btnPiaToggleArpScan" style="border-top: solid 3px #ffd080;" onclick="askPiaToggleArpScan()">Toggle arp-Scan (on/off)</button>
+            <button type="button" class="btn btn-default pa-btn pa-btn-delete bg-red dbtools-button" id="btnDeleteMAC" style="border-top: solid 3px #dd4b39;" onclick="askDeleteDevicesWithEmptyMACs()"><?php echo $pia_lang['Maintenance_Tool_del_empty_macs'];?></button>
         </div>
-        <div class="db_tools_table_cell_b" style="">Switching the arp-scan on or off. When the scan has been switched off it remains off until it is activated again. Active scans are not canceled.</div>
+        <div class="db_tools_table_cell_b"><?php echo $pia_lang['Maintenance_Tool_del_empty_macs_text'];?></div>
     </div>
     <div class="db_info_table_row">
         <div class="db_tools_table_cell_a" style="">
-            <button type="button" class="btn btn-default pa-btn pa-btn-delete bg-red dbtools-button" id="btnDeleteMAC" style="border-top: solid 3px #dd4b39;" onclick="askDeleteDevicesWithEmptyMACs()">Delete Devices with empty MACs</button>
+            <button type="button" class="btn btn-default pa-btn pa-btn-delete bg-red dbtools-button" id="btnDeleteMAC" style="border-top: solid 3px #dd4b39;" onclick="askDeleteAllDevices()"><?php echo $pia_lang['Maintenance_Tool_del_alldev'];?></button>
         </div>
-        <div class="db_tools_table_cell_b">Before using this function, please make a backup. The deletion cannot be undone. All devices without MAC will be deleted from the database.</div>
+        <div class="db_tools_table_cell_b"><?php echo $pia_lang['Maintenance_Tool_del_alldev_text'];?></div>
     </div>
     <div class="db_info_table_row">
         <div class="db_tools_table_cell_a" style="">
-            <button type="button" class="btn btn-default pa-btn pa-btn-delete bg-red dbtools-button" id="btnDeleteMAC" style="border-top: solid 3px #dd4b39;" onclick="askDeleteAllDevices()">Delete all Devices</button>
+            <button type="button" class="btn btn-default pa-btn pa-btn-delete bg-red dbtools-button" id="btnDeleteUnknown" style="border-top: solid 3px #dd4b39;" onclick="askDeleteUnknown()"><?php echo $pia_lang['Maintenance_Tool_del_unknowndev'];?></button>
         </div>
-        <div class="db_tools_table_cell_b">Before using this function, please make a backup. The deletion cannot be undone. All devices will be deleted from the database.</div>
+        <div class="db_tools_table_cell_b"><?php echo $pia_lang['Maintenance_Tool_del_unknowndev_text'];?></div>
     </div>
     <div class="db_info_table_row">
         <div class="db_tools_table_cell_a" style="">
-            <button type="button" class="btn btn-default pa-btn pa-btn-delete bg-red dbtools-button" id="btnDeleteUnknown" style="border-top: solid 3px #dd4b39;" onclick="askDeleteUnknown()">Delete (unknown) Devices</button>
+            <button type="button" class="btn btn-default pa-btn pa-btn-delete bg-red dbtools-button" id="btnDeleteEvents" style="border-top: solid 3px #dd4b39;" onclick="askDeleteEvents()"><?php echo $pia_lang['Maintenance_Tool_del_allevents'];?></button>
         </div>
-        <div class="db_tools_table_cell_b">Before using this function, please make a backup. The deletion cannot be undone. All devices named (unknown) will be deleted from the database.</div>
+        <div class="db_tools_table_cell_b"><?php echo $pia_lang['Maintenance_Tool_del_allevents_text'];?></div>
     </div>
     <div class="db_info_table_row">
         <div class="db_tools_table_cell_a" style="">
-            <button type="button" class="btn btn-default pa-btn pa-btn-delete bg-red dbtools-button" id="btnDeleteEvents" style="border-top: solid 3px #dd4b39;" onclick="askDeleteEvents()">Delete all Events (Reset Presence)</button>
+            <button type="button" class="btn btn-default pa-btn pa-btn-delete bg-red dbtools-button" id="btnPiaBackupDBtoArchive" style="border-top: solid 3px #dd4b39;" onclick="askPiaBackupDBtoArchive()"><?php echo $pia_lang['Maintenance_Tool_backup'];?></button>
         </div>
-        <div class="db_tools_table_cell_b">Before using this function, please make a backup. The deletion cannot be undone. All events in the database will be deleted. At that moment the presence of all devices will be reset. This can lead to invalid sessions. 
-        This means that devices are displayed as "present" although they are offline. A scan while the device in question is online solves the problem.</div>
+        <div class="db_tools_table_cell_b"><?php echo $pia_lang['Maintenance_Tool_backup_text'];?></div>
     </div>
     <div class="db_info_table_row">
         <div class="db_tools_table_cell_a" style="">
-            <button type="button" class="btn btn-default pa-btn pa-btn-delete bg-red dbtools-button" id="btnPiaBackupDBtoArchive" style="border-top: solid 3px #dd4b39;" onclick="askPiaBackupDBtoArchive()">DB Backup</button>
+            <button type="button" class="btn btn-default pa-btn pa-btn-delete bg-red dbtools-button" id="btnPiaRestoreDBfromArchive" style="border-top: solid 3px #dd4b39;" onclick="askPiaRestoreDBfromArchive()"><?php echo $pia_lang['Maintenance_Tool_restore'];?><br><?php echo $latestbackup_date;?></button>
         </div>
-        <div class="db_tools_table_cell_b">The database backups are located in the database directory as a zip-archive, named with the creation date. There is no maximum number of backups.</div>
-    </div>
-    <div class="db_info_table_row">
-        <div class="db_tools_table_cell_a" style="">
-            <button type="button" class="btn btn-default pa-btn pa-btn-delete bg-red dbtools-button" id="btnPiaRestoreDBfromArchive" style="border-top: solid 3px #dd4b39;" onclick="askPiaRestoreDBfromArchive()">DB Restore<br><?php echo $latestbackup_date;?></button>
-        </div>
-        <div class="db_tools_table_cell_b">The latest backup can be restored via the button, but older backups can only be restored manually. After the restore, make an integrity check on 
-            the database for safety, in case the db was currently in write access when the backup was created.</div>
+        <div class="db_tools_table_cell_b"><?php echo $pia_lang['Maintenance_Tool_restore_text'];?></div>
     </div>
 </div>
 
@@ -227,7 +303,7 @@ if (submit) {
 // delete devices with emty macs
 function askDeleteDevicesWithEmptyMACs () {
   // Ask 
-  showModalWarning('Delete Devices', 'Are you sure you want to delete all devices with empty MAC addresses?<br>(maybe you prefer to archive it)',
+  showModalWarning('<?php echo $pia_lang['Maintenance_Tool_del_empty_macs_noti'];?>', '<?php echo $pia_lang['Maintenance_Tool_del_empty_macs_noti_text'];?>',
     'Cancel', 'Delete', 'deleteDevicesWithEmptyMACs');
 }
 function deleteDevicesWithEmptyMACs()
@@ -241,7 +317,7 @@ function deleteDevicesWithEmptyMACs()
 // delete all devices 
 function askDeleteAllDevices () {
   // Ask 
-  showModalWarning('Delete Devices', 'Are you sure you want to delete all devices?',
+  showModalWarning('<?php echo $pia_lang['Maintenance_Tool_del_alldev_noti'];?>', '<?php echo $pia_lang['Maintenance_Tool_del_alldev_noti_text'];?>',
     'Cancel', 'Delete', 'deleteAllDevices');
 }
 function deleteAllDevices()
@@ -255,7 +331,7 @@ function deleteAllDevices()
 // delete all (unknown) devices 
 function askDeleteUnknown () {
   // Ask 
-  showModalWarning('Delete (unknown) Devices', 'Are you sure you want to delete all (unknown) devices?',
+  showModalWarning('<?php echo $pia_lang['Maintenance_Tool_del_unknowndev_noti'];?>', '<?php echo $pia_lang['Maintenance_Tool_del_unknowndev_noti_text'];?>',
     'Cancel', 'Delete', 'deleteUnknownDevices');
 }
 function deleteUnknownDevices()
@@ -269,7 +345,7 @@ function deleteUnknownDevices()
 // delete all Events 
 function askDeleteEvents () {
   // Ask 
-  showModalWarning('Delete Events', 'Are you sure you want to delete all Events?',
+  showModalWarning('<?php echo $pia_lang['Maintenance_Tool_del_allevents_noti'];?>', '<?php echo $pia_lang['Maintenance_Tool_del_allevents_noti_text'];?>',
     'Cancel', 'Delete', 'deleteEvents');
 }
 function deleteEvents()
@@ -284,7 +360,7 @@ function deleteEvents()
 // Backup DB to Archive 
 function askPiaBackupDBtoArchive () {
   // Ask 
-  showModalWarning('DB Backup', 'Are you sure you want to exectute the the DB Backup? Be sure that no scan is currently running.',
+  showModalWarning('<?php echo $pia_lang['Maintenance_Tool_backup_noti'];?>', '<?php echo $pia_lang['Maintenance_Tool_backup_noti_text'];?>',
     'Cancel', 'Run Backup', 'PiaBackupDBtoArchive');
 }
 function PiaBackupDBtoArchive()
@@ -299,7 +375,7 @@ function PiaBackupDBtoArchive()
 // Restore DB from Archive 
 function askPiaRestoreDBfromArchive () {
   // Ask 
-  showModalWarning('DB Restore', 'Are you sure you want to exectute the the DB Restore? Be sure that no scan is currently running.',
+  showModalWarning('<?php echo $pia_lang['Maintenance_Tool_restore_noti'];?>', '<?php echo $pia_lang['Maintenance_Tool_restore_noti_text'];?>',
     'Cancel', 'Run Restore', 'PiaRestoreDBfromArchive');
 }
 function PiaRestoreDBfromArchive()
@@ -313,7 +389,7 @@ function PiaRestoreDBfromArchive()
 // Restore DB from Archive 
 function askPiaEnableDarkmode () {
   // Ask 
-  showModalWarning('Switch Theme', 'After the theme switch, the page tries to reload itself to activate the change. If necessary, the cache must be cleared.',
+  showModalWarning('<?php echo $pia_lang['Maintenance_Tool_darkmode_noti'];?>', '<?php echo $pia_lang['Maintenance_Tool_darkmode_noti_text'];?>',
     'Cancel', 'Switch', 'PiaEnableDarkmode');
 }
 function PiaEnableDarkmode()
@@ -327,7 +403,7 @@ function PiaEnableDarkmode()
 // Toggle the Arp-Scans 
 function askPiaToggleArpScan () {
   // Ask 
-  showModalWarning('Toggle arp-Scan on or off', 'When the scan has been switched off it remains off until it is activated again.',
+  showModalWarning('<?php echo $pia_lang['Maintenance_Tool_arpscansw_noti'];?>', '<?php echo $pia_lang['Maintenance_Tool_arpscansw_noti_text'];?>',
     'Cancel', 'Switch', 'PiaToggleArpScan');
 }
 function PiaToggleArpScan()
diff --git a/front/php/templates/header.php b/front/php/templates/header.php
index d226e7e1..bf9fb9c0 100644
--- a/front/php/templates/header.php
+++ b/front/php/templates/header.php
@@ -12,10 +12,19 @@
 if (file_exists('../db/setting_darkmode')) {
     $ENABLED_DARKMODE = True;
 }
-foreach (glob("../db/skin*") as $filename) {
-    $pia_skin_selected = basename($filename);
+foreach (glob("../db/setting_skin*") as $filename) {
+    $pia_skin_selected = str_replace('setting_','',basename($filename));
 }
 if (strlen($pia_skin_selected) == 0) {$pia_skin_selected = 'skin-blue';}
+
+foreach (glob("../db/setting_language*") as $filename) {
+    $pia_lang_selected = str_replace('setting_language_','',basename($filename));
+}
+
+if (strlen($pia_lang_selected) == 0) {$pia_lang_selected = 'en_us';}
+
+require 'php/templates/language/'.$pia_lang_selected.'.php';
+
 ?>
 
 <!DOCTYPE html> 
@@ -201,7 +210,7 @@ function show_pia_servertime() {
 -->
 
         <li class=" <?php if (in_array (basename($_SERVER['SCRIPT_NAME']), array('devices.php', 'deviceDetails.php') ) ){ echo 'active'; } ?>">
-          <a href="devices.php"><i class="fa fa-laptop"></i> <span>Devices</span></a>
+          <a href="devices.php"><i class="fa fa-laptop"></i> <span><?php echo $pia_lang['Navigation_Devices'];?></span></a>
         </li>
 
 <!--
@@ -209,15 +218,15 @@ function show_pia_servertime() {
 -->
 
         <li class=" <?php if (in_array (basename($_SERVER['SCRIPT_NAME']), array('presence.php') ) ){ echo 'active'; } ?>">
-          <a href="presence.php"><i class="fa fa-calendar"></i> <span>Presence</span></a>
+          <a href="presence.php"><i class="fa fa-calendar"></i> <span><?php echo $pia_lang['Navigation_Presence'];?></span></a>
         </li>
 
         <li class=" <?php if (in_array (basename($_SERVER['SCRIPT_NAME']), array('events.php') ) ){ echo 'active'; } ?>">
-          <a href="events.php"><i class="fa fa-bolt"></i> <span>Events</span></a>
+          <a href="events.php"><i class="fa fa-bolt"></i> <span><?php echo $pia_lang['Navigation_Events'];?></span></a>
         </li>
 
         <li class=" <?php if (in_array (basename($_SERVER['SCRIPT_NAME']), array('maintenance.php') ) ){ echo 'active'; } ?>">
-          <a href="maintenance.php"><i class="fa fa-cog"></i> <span>Maintenance</span></a>
+          <a href="maintenance.php"><i class="fa fa-cog"></i> <span><?php echo $pia_lang['Navigation_Maintenance'];?></span></a>
         </li>
 
 <!--
diff --git a/front/php/templates/language/de_de.php b/front/php/templates/language/de_de.php
new file mode 100644
index 00000000..3beb7ced
--- /dev/null
+++ b/front/php/templates/language/de_de.php
@@ -0,0 +1,152 @@
+<?php
+//////////////////////////////////////////////////////////////////
+// Device Page
+//////////////////////////////////////////////////////////////////
+
+$pia_lang['Navigation_Devices'] = 'Geräte';
+$pia_lang['Navigation_Presence'] = 'Anwesenheit';
+$pia_lang['Navigation_Events'] = 'Ereignisse';
+$pia_lang['Navigation_Maintenance'] = 'Wartung';
+$pia_lang['Device_Title'] = 'Geräte';
+$pia_lang['Device_Shortcut_AllDevices'] = 'Alle Geräte';
+$pia_lang['Device_Shortcut_Connected'] = 'Verbunden';
+$pia_lang['Device_Shortcut_Favorites'] = 'Favoriten';
+$pia_lang['Device_Shortcut_NewDevices'] = 'Neue Geräte';
+$pia_lang['Device_Shortcut_DownAlerts'] = 'Down Meldung';
+$pia_lang['Device_Shortcut_Archived'] = 'Archiviert';
+$pia_lang['Device_Shortcut_Devices'] = 'Geräte';
+$pia_lang['Device_TableHead_Name'] = 'Name';
+$pia_lang['Device_TableHead_Owner'] = 'Eigentümer';
+$pia_lang['Device_TableHead_Type'] = 'Type';
+$pia_lang['Device_TableHead_Favorite'] = 'Favorit';
+$pia_lang['Device_TableHead_Group'] = 'Gruppe';
+$pia_lang['Device_TableHead_FirstSession'] = 'Erste Sitzg.';
+$pia_lang['Device_TableHead_LastSession'] = 'Letzte Sitzg.';
+$pia_lang['Device_TableHead_LastIP'] = 'Letzte IP';
+$pia_lang['Device_TableHead_MAC'] = 'MAC';
+$pia_lang['Device_TableHead_LastIPOrder'] = 'Last IP Order';
+$pia_lang['Device_TableHead_Rowid'] = 'Zeilennummer';
+$pia_lang['Device_TableHead_Status'] = 'Status';
+$pia_lang['Device_Searchbox'] = 'Suche';
+$pia_lang['Device_Tablelenght'] = 'Zeige _MENU_ Einträge';
+$pia_lang['Device_Tablelenght_all'] = 'Alle';
+$pia_lang['Device_Table_info'] = 'Zeige _START_ bis _END_ von _TOTAL_ Einträgen';
+$pia_lang['Device_Table_nav_next'] = 'Nächste';
+$pia_lang['Device_Table_nav_prev'] = 'Zurück';
+
+//////////////////////////////////////////////////////////////////
+// Presence Page
+//////////////////////////////////////////////////////////////////
+
+$pia_lang['Presence_Title'] = 'Anwesenheit pro Gerät';
+$pia_lang['Presence_Shortcut_AllDevices'] = 'Alle Geräte';
+$pia_lang['Presence_Shortcut_Connected'] = 'Verbunden';
+$pia_lang['Presence_Shortcut_Favorites'] = 'Favoriten';
+$pia_lang['Presence_Shortcut_NewDevices'] = 'Neue Geräte';
+$pia_lang['Presence_Shortcut_DownAlerts'] = 'Down Meldung';
+$pia_lang['Presence_Shortcut_Archived'] = 'Archiviert';
+$pia_lang['Presence_Shortcut_Devices'] = 'Geräte';
+
+// Localizationfiles under pialert/front/lib/AdminLTE/bower_components/fullcalendar/dist/locale
+$pia_lang['Presence_CalHead_lang'] = 'de';
+$pia_lang['Presence_CalHead_year'] = 'Jahr';
+$pia_lang['Presence_CalHead_quarter'] = 'Quartal';
+$pia_lang['Presence_CalHead_month'] = 'Monat';
+$pia_lang['Presence_CalHead_week'] = 'Woche';
+
+//////////////////////////////////////////////////////////////////
+// Events Page
+//////////////////////////////////////////////////////////////////
+
+$pia_lang['Events_Title'] = 'Ereignisse';
+$pia_lang['Events_Periodselect_today'] = 'Heute';
+$pia_lang['Events_Periodselect_LastWeek'] = 'Letzte Woche';
+$pia_lang['Events_Periodselect_LastMonth'] = 'Letzter Monat';
+$pia_lang['Events_Periodselect_LastYear'] = 'Letztes Jahr';
+$pia_lang['Events_Periodselect_All'] = 'Alle Ereignisse';
+
+$pia_lang['Events_Shortcut_AllEvents'] = 'Alle Ereignisse';
+$pia_lang['Events_Shortcut_Sessions'] = 'Sitzungen';
+$pia_lang['Events_Shortcut_MissSessions'] = 'fehlende Sitzg.';
+$pia_lang['Events_Shortcut_VoidSessions'] = 'beendete Sitzg.';
+$pia_lang['Events_Shortcut_NewDevices'] = 'Neue Geräte';
+$pia_lang['Events_Shortcut_DownAlerts'] = 'Down Meldung';
+$pia_lang['Events_Shortcut_Events'] = 'Ereignisse';
+
+$pia_lang['Events_TableHead_Name'] = 'Name';
+$pia_lang['Events_TableHead_Owner'] = 'Eigentümer';
+$pia_lang['Events_TableHead_Type'] = 'Type';
+$pia_lang['Events_TableHead_Favorite'] = 'Favorit';
+$pia_lang['Events_TableHead_Group'] = 'Gruppe';
+$pia_lang['Events_TableHead_FirstSession'] = 'Erste Sitzg.';
+$pia_lang['Events_TableHead_LastSession'] = 'Letzte Sitzg.';
+$pia_lang['Events_TableHead_LastIP'] = 'Letzte IP';
+$pia_lang['Events_TableHead_MAC'] = 'MAC';
+$pia_lang['Events_TableHead_LastIPOrder'] = 'Last IP Order';
+$pia_lang['Events_TableHead_Rowid'] = 'Zeilennummer';
+$pia_lang['Events_TableHead_Status'] = 'Status';
+
+$pia_lang['Events_Searchbox'] = 'Suche';
+$pia_lang['Events_Tablelenght'] = 'Zeige _MENU_ Einträge';
+$pia_lang['Events_Tablelenght_all'] = 'Alle';
+$pia_lang['Events_Table_info'] = 'Zeige _START_ bis _END_ von _TOTAL_ Einträgen';
+$pia_lang['Events_Table_nav_next'] = 'Nächste';
+$pia_lang['Events_Table_nav_prev'] = 'Zurück';
+
+//////////////////////////////////////////////////////////////////
+// Maintenance Page
+//////////////////////////////////////////////////////////////////
+
+$pia_lang['Maintenance_Title'] = 'Wartungswerkzeuge';
+$pia_lang['Maintenance_database_path'] = 'Datenbank-Pfad';
+$pia_lang['Maintenance_database_size'] = 'Datenbank-Größe';
+$pia_lang['Maintenance_database_lastmod'] = 'Letzte Änderung';
+$pia_lang['Maintenance_database_backup'] = 'DB Sicherungen';
+$pia_lang['Maintenance_database_backup_found'] = 'Sicherungen wurden gefunden';
+$pia_lang['Maintenance_database_backup_total'] = 'gesamter Speicherplatz';
+$pia_lang['Maintenance_arp_status'] = 'Scan Status';
+$pia_lang['Maintenance_arp_status_off'] = 'ist im Moment deaktiviert';
+$pia_lang['Maintenance_arp_status_on'] = 'Scan(s) sind gerade aktiv';
+$pia_lang['Maintenance_themeselector_lable'] = 'Skin Auswahl';
+$pia_lang['Maintenance_themeselector_empty'] = 'Skin wählen';
+$pia_lang['Maintenance_themeselector_text'] = 'Die Änderung findet serverseitig statt, betrifft also alle verwendeten Geräte.';
+$pia_lang['Maintenance_lang_selector_lable'] = 'Sprachauswahl';
+$pia_lang['Maintenance_lang_selector_empty'] = 'Sprache wählen';
+$pia_lang['Maintenance_lang_en_us'] = 'Englisch (US)';
+$pia_lang['Maintenance_lang_de_de'] = 'Deutsch (DE)';
+$pia_lang['Maintenance_lang_selector_text'] = 'Die Änderung findet serverseitig statt, betrifft also alle verwendeten Geräte.';
+$pia_lang['Maintenance_Tool_darkmode'] = 'Darstellungswechsel (Dunkel/Hell)';
+$pia_lang['Maintenance_Tool_darkmode_text'] = 'Wechselt zwischen der hellen und der dunklen Darstellung. Wenn die Umschaltung nicht ordentlich funktionieren sollte, versuchen Sie den Browsercache zu löschen. Die Änderung findet serverseitig statt, betrifft also alle verwendeten Geräte.';
+$pia_lang['Maintenance_Tool_darkmode_noti'] = 'Darstellungswechsel';
+$pia_lang['Maintenance_Tool_darkmode_noti_text'] = 'Wechselt zwischen der hellen und der dunklen Darstellung. Wenn die Umschaltung nicht ordentlich funktionieren sollte, versuchen Sie den Browsercache zu löschen.';
+$pia_lang['Maintenance_Tool_arpscansw'] = 'arp-Scan stoppen/starten';
+$pia_lang['Maintenance_Tool_arpscansw_text'] = 'Schaltet den arp-Scan an oder aus. Wenn der Scan aus ist, bleibt er so lange aus bis er wieder aktiviert wird. Bereits laufende Scans werden dabei nicht beendet.';
+$pia_lang['Maintenance_Tool_arpscansw_noti'] = 'arp-Scan stoppen/starten';
+$pia_lang['Maintenance_Tool_arpscansw_noti_text'] = 'Wenn der Scan aus ist, bleibt er so lange aus bis er wieder aktiviert wird.';
+$pia_lang['Maintenance_Tool_del_empty_macs'] = 'Alle Geräte ohne MAC löschen';
+$pia_lang['Maintenance_Tool_del_empty_macs_text'] = 'Bevor Sie diese Funktion nutzen, machen Sie bitte ein Backup. Die Löschung kann ohne Backup nicht rückgängig gemacht werden. Alle Geäte ohne MAC-Adresse werden aus der Datenbank gelöscht.';
+$pia_lang['Maintenance_Tool_del_empty_macs_noti'] = 'Geräte löschen';
+$pia_lang['Maintenance_Tool_del_empty_macs_noti_text'] = 'Sind Sie sicher, dass Sie alle Geräte ohne MAC-Adresse löschen wollen?<br>(Vielleicht bevorzugenn Sie eine Archivierung.)';
+$pia_lang['Maintenance_Tool_del_alldev'] = 'Alle Geräte löschen';
+$pia_lang['Maintenance_Tool_del_alldev_text'] = 'Bevor Sie diese Funktion nutzen, machen Sie bitte ein Backup. Die Löschung kann ohne Backup nicht rückgängig gemacht werden. Alle Geräte werden in der Datenbank gelöscht.';
+$pia_lang['Maintenance_Tool_del_alldev_noti'] = 'Geräte löschen';
+$pia_lang['Maintenance_Tool_del_alldev_noti_text'] = 'Sind Sie sich sicher, dass Sie alle Geräte löschen wollen?';
+$pia_lang['Maintenance_Tool_del_unknowndev'] = 'Löschen der (unknown) Geräte';
+$pia_lang['Maintenance_Tool_del_unknowndev_text'] = 'Bevor Sie diese Funktion nutzen, machen Sie bitte ein Backup. Die Löschung kann ohne Backup nicht rückgängig gemacht werden. Alle Gräte mit dem Namen (unknown) werden aus der Datenbank gelöscht..';
+$pia_lang['Maintenance_Tool_del_unknowndev_noti'] = 'Lösche (unknown) Geräte';
+$pia_lang['Maintenance_Tool_del_unknowndev_noti_text'] = 'Sind Sie sicher, dass Sie alle (unknown) Geräte aus der Datenbank löschen wollen?';
+$pia_lang['Maintenance_Tool_del_allevents'] = 'Alle Ereignisse löschen';
+$pia_lang['Maintenance_Tool_del_allevents_text'] = 'Bevor Sie diese Funktion nutzen, machen Sie bitte ein Backup. Die Löschung kann ohne Backup nicht rückgängig gemacht werden. Alle Ereignisse werden aus der Datenbank gelöscht. Dies setzt auch die Anwesenheit zurück. Es kann ab dem Moment zu ungültigen Sitzungen kommen. Ein Scan, während das betreffende Gerät "online" ist, sollte das Problem lösen.';
+$pia_lang['Maintenance_Tool_del_allevents_noti'] = 'Alle Ereignisse löschen';
+$pia_lang['Maintenance_Tool_del_allevents_noti_text'] = 'Sind Sie sicher, dass Sie alle Ereignisse aus der Datenbank löschen wollen. Dies setzt die Anwesenheit aller Geräte zurück.';
+$pia_lang['Maintenance_Tool_backup'] = 'DB Sicherung';
+$pia_lang['Maintenance_Tool_backup_text'] = 'Die Datenbank-Sicherungen befinden sich im Datenbank-Verzeichnis, gepackt als zip-Archive, benannt mit dem Erstellungsdatum. Es gibt keine maximale Anzahl von Backups.';
+$pia_lang['Maintenance_Tool_backup_noti'] = 'DB Sicherung';
+$pia_lang['Maintenance_Tool_backup_noti_text'] = 'Sind Sie sicher, dass Sie die Datenbank jetzt sichern möchten. Prüfen Sie, dass gerade keine Scans stattfinden.';
+$pia_lang['Maintenance_Tool_restore'] = 'DB Wiederherstellung';
+$pia_lang['Maintenance_Tool_restore_text'] = 'Das neuste Backup kann über diese Funktion wiederhergestellt werden. Ältere Sicherungen müssen manuell wiederhergestellt werden. Es empfiehlt sich eine Integritätsprüfung nach der Wiederherstellung zu machen, falls die Datenbank bei der Sicherung geöffnet war.';
+$pia_lang['Maintenance_Tool_restore_noti'] = 'DB Wiederherstellung';
+$pia_lang['Maintenance_Tool_restore_noti_text'] = 'Sind Sie sicher, dass Sie die Datenbank aus der neusten Sicherung wiederherstellen möchten? Prüfen Sie, dass gerade keine Scans stattfinden.';
+
+?>
+
diff --git a/front/php/templates/language/en_us.php b/front/php/templates/language/en_us.php
new file mode 100644
index 00000000..c477fa9d
--- /dev/null
+++ b/front/php/templates/language/en_us.php
@@ -0,0 +1,151 @@
+<?php
+//////////////////////////////////////////////////////////////////
+// Device Page
+//////////////////////////////////////////////////////////////////
+
+$pia_lang['Navigation_Devices'] = 'Devices';
+$pia_lang['Navigation_Presence'] = 'Presence';
+$pia_lang['Navigation_Events'] = 'Events';
+$pia_lang['Navigation_Maintenance'] = 'Maintenance';
+$pia_lang['Device_Title'] = 'Devices';
+$pia_lang['Device_Shortcut_AllDevices'] = 'All Devices';
+$pia_lang['Device_Shortcut_Connected'] = 'Connected';
+$pia_lang['Device_Shortcut_Favorites'] = 'Favorites';
+$pia_lang['Device_Shortcut_NewDevices'] = 'New Devices';
+$pia_lang['Device_Shortcut_DownAlerts'] = 'Down Alerts';
+$pia_lang['Device_Shortcut_Archived'] = 'Archived';
+$pia_lang['Device_Shortcut_Devices'] = 'Devices';
+$pia_lang['Device_TableHead_Name'] = 'Name';
+$pia_lang['Device_TableHead_Owner'] = 'Owner';
+$pia_lang['Device_TableHead_Type'] = 'Type';
+$pia_lang['Device_TableHead_Favorite'] = 'Favorite';
+$pia_lang['Device_TableHead_Group'] = 'Group';
+$pia_lang['Device_TableHead_FirstSession'] = 'First Session';
+$pia_lang['Device_TableHead_LastSession'] = 'Last Session';
+$pia_lang['Device_TableHead_LastIP'] = 'Last IP';
+$pia_lang['Device_TableHead_MAC'] = 'MAC';
+$pia_lang['Device_TableHead_LastIPOrder'] = 'Last IP Order';
+$pia_lang['Device_TableHead_Rowid'] = 'Rowid';
+$pia_lang['Device_TableHead_Status'] = 'Status';
+$pia_lang['Device_Searchbox'] = 'Search';
+$pia_lang['Device_Tablelenght'] = 'Show _MENU_ entries';
+$pia_lang['Device_Tablelenght_all'] = 'All';
+$pia_lang['Device_Table_info'] = 'Showing _START_ to _END_ of _TOTAL_ entries';
+$pia_lang['Device_Table_nav_next'] = 'Next';
+$pia_lang['Device_Table_nav_prev'] = 'Previous';
+
+//////////////////////////////////////////////////////////////////
+// Presence Page
+//////////////////////////////////////////////////////////////////
+
+$pia_lang['Presence_Title'] = 'Presence by Device';
+$pia_lang['Presence_Shortcut_AllDevices'] = 'All Devices';
+$pia_lang['Presence_Shortcut_Connected'] = 'Connected';
+$pia_lang['Presence_Shortcut_Favorites'] = 'Favorites';
+$pia_lang['Presence_Shortcut_NewDevices'] = 'New Devices';
+$pia_lang['Presence_Shortcut_DownAlerts'] = 'Down Alerts';
+$pia_lang['Presence_Shortcut_Archived'] = 'Archived';
+$pia_lang['Presence_Shortcut_Devices'] = 'Devices';
+
+// Localizationfiles under pialert/front/lib/AdminLTE/bower_components/fullcalendar/dist/locale
+$pia_lang['Presence_CalHead_lang'] = 'en-us';
+$pia_lang['Presence_CalHead_year'] = 'year';
+$pia_lang['Presence_CalHead_quarter'] = 'quarter';
+$pia_lang['Presence_CalHead_month'] = 'month';
+$pia_lang['Presence_CalHead_week'] = 'week';
+
+//////////////////////////////////////////////////////////////////
+// Events Page
+//////////////////////////////////////////////////////////////////
+
+$pia_lang['Events_Title'] = 'Events';
+$pia_lang['Events_Periodselect_today'] = 'Today';
+$pia_lang['Events_Periodselect_LastWeek'] = 'Last Week';
+$pia_lang['Events_Periodselect_LastMonth'] = 'Last Month';
+$pia_lang['Events_Periodselect_LastYear'] = 'Last Year';
+$pia_lang['Events_Periodselect_All'] = 'All Info';
+
+$pia_lang['Events_Shortcut_AllEvents'] = 'All Events';
+$pia_lang['Events_Shortcut_Sessions'] = 'Sessions';
+$pia_lang['Events_Shortcut_MissSessions'] = 'Missing Sessions';
+$pia_lang['Events_Shortcut_VoidSessions'] = 'Voided Sessions';
+$pia_lang['Events_Shortcut_NewDevices'] = 'New Devices';
+$pia_lang['Events_Shortcut_DownAlerts'] = 'Down Alerts';
+$pia_lang['Events_Shortcut_Events'] = 'Events';
+
+$pia_lang['Events_TableHead_Name'] = 'Name';
+$pia_lang['Events_TableHead_Owner'] = 'Eigentümer';
+$pia_lang['Events_TableHead_Type'] = 'Type';
+$pia_lang['Events_TableHead_Favorite'] = 'Favorit';
+$pia_lang['Events_TableHead_Group'] = 'Gruppe';
+$pia_lang['Events_TableHead_FirstSession'] = 'Erste Sitzg.';
+$pia_lang['Events_TableHead_LastSession'] = 'Letzte Sitzg.';
+$pia_lang['Events_TableHead_LastIP'] = 'Letzte IP';
+$pia_lang['Events_TableHead_MAC'] = 'MAC';
+$pia_lang['Events_TableHead_LastIPOrder'] = 'Last IP Order';
+$pia_lang['Events_TableHead_Rowid'] = 'Zeilennummer';
+$pia_lang['Events_TableHead_Status'] = 'Status';
+
+$pia_lang['Events_Searchbox'] = 'Search';
+$pia_lang['Events_Tablelenght'] = 'Show _MENU_ entries';
+$pia_lang['Events_Tablelenght_all'] = 'All';
+$pia_lang['Events_Table_info'] = 'Showing _START_ to _END_ of _TOTAL_ entries';
+$pia_lang['Events_Table_nav_next'] = 'Next';
+$pia_lang['Events_Table_nav_prev'] = 'Previous';
+
+//////////////////////////////////////////////////////////////////
+// Maintenance Page
+//////////////////////////////////////////////////////////////////
+
+$pia_lang['Maintenance_Title'] = 'Maintenance tools';
+$pia_lang['Maintenance_database_path'] = 'Database-Path';
+$pia_lang['Maintenance_database_size'] = 'Database-Size';
+$pia_lang['Maintenance_database_lastmod'] = 'last Modification';
+$pia_lang['Maintenance_database_backup'] = 'DB Backups';
+$pia_lang['Maintenance_database_backup_found'] = 'backups where found';
+$pia_lang['Maintenance_database_backup_total'] = 'total disk usage';
+$pia_lang['Maintenance_arp_status'] = 'Scan Status';
+$pia_lang['Maintenance_arp_status_off'] = 'is currently disabled';
+$pia_lang['Maintenance_arp_status_on'] = 'scan(s) currently running';
+$pia_lang['Maintenance_themeselector_lable'] = 'Select Skin';
+$pia_lang['Maintenance_themeselector_empty'] = 'Choose a Skin';
+$pia_lang['Maintenance_themeselector_text'] = 'The change takes place on the server side, so it affects all devices in use.';
+$pia_lang['Maintenance_lang_selector_lable'] = 'Select Language';
+$pia_lang['Maintenance_lang_selector_empty'] = 'Choose Language';
+$pia_lang['Maintenance_lang_en_us'] = 'English (US)';
+$pia_lang['Maintenance_lang_de_de'] = 'German (DE)';
+$pia_lang['Maintenance_lang_selector_text'] = 'The change takes place on the server side, so it affects all devices in use.';
+$pia_lang['Maintenance_Tool_darkmode'] = 'Toggle Modes (Dark/Light)';
+$pia_lang['Maintenance_Tool_darkmode_text'] = 'Toggle between dark mode and light mode. If the switch does not work properly, try to clear the browser cache. The change takes place on the server side, so it affects all devices in use.';
+$pia_lang['Maintenance_Tool_darkmode_noti'] = 'Toggle Modes';
+$pia_lang['Maintenance_Tool_darkmode_noti_text'] = 'After the theme switch, the page tries to reload itself to activate the change. If necessary, the cache must be cleared.';
+$pia_lang['Maintenance_Tool_arpscansw'] = 'Toggle arp-Scan (on/off)';
+$pia_lang['Maintenance_Tool_arpscansw_text'] = 'Switching the arp-scan on or off. When the scan has been switched off it remains off until it is activated again. Active scans are not canceled.';
+$pia_lang['Maintenance_Tool_arpscansw_noti'] = 'Toggle arp-Scan on or off';
+$pia_lang['Maintenance_Tool_arpscansw_noti_text'] = 'When the scan has been switched off it remains off until it is activated again.';
+$pia_lang['Maintenance_Tool_del_empty_macs'] = 'Delete Devices with empty MACs';
+$pia_lang['Maintenance_Tool_del_empty_macs_text'] = 'Before using this function, please make a backup. The deletion cannot be undone. All devices without MAC will be deleted from the database.';
+$pia_lang['Maintenance_Tool_del_empty_macs_noti'] = 'Delete Devices';
+$pia_lang['Maintenance_Tool_del_empty_macs_noti_text'] = 'Are you sure you want to delete all devices with empty MAC addresses?<br>(maybe you prefer to archive it)';
+$pia_lang['Maintenance_Tool_del_alldev'] = 'Delete all Devices';
+$pia_lang['Maintenance_Tool_del_alldev_text'] = 'Before using this function, please make a backup. The deletion cannot be undone. All devices will be deleted from the database.';
+$pia_lang['Maintenance_Tool_del_alldev_noti'] = 'Delete Devices';
+$pia_lang['Maintenance_Tool_del_alldev_noti_text'] = 'Are you sure you want to delete all devices?';
+$pia_lang['Maintenance_Tool_del_unknowndev'] = 'Delete (unknown) Devices';
+$pia_lang['Maintenance_Tool_del_unknowndev_text'] = 'Before using this function, please make a backup. The deletion cannot be undone. All devices named (unknown) will be deleted from the database.';
+$pia_lang['Maintenance_Tool_del_unknowndev_noti'] = 'Delete (unknown) Devices';
+$pia_lang['Maintenance_Tool_del_unknowndev_noti_text'] = 'Are you sure you want to delete all (unknown) devices?';
+$pia_lang['Maintenance_Tool_del_allevents'] = 'Delete all Events (Reset Presence)';
+$pia_lang['Maintenance_Tool_del_allevents_text'] = 'Before using this function, please make a backup. The deletion cannot be undone. All events in the database will be deleted. At that moment the presence of all devices will be reset. This can lead to invalid sessions. This means that devices are displayed as "present" although they are offline. A scan while the device in question is online solves the problem.';
+$pia_lang['Maintenance_Tool_del_allevents_noti'] = 'Delete Events';
+$pia_lang['Maintenance_Tool_del_allevents_noti_text'] = 'Are you sure you want to delete all Events? This resets Presence of all Devices.';
+$pia_lang['Maintenance_Tool_backup'] = 'DB Backup';
+$pia_lang['Maintenance_Tool_backup_text'] = 'The database backups are located in the database directory as a zip-archive, named with the creation date. There is no maximum number of backups.';
+$pia_lang['Maintenance_Tool_backup_noti'] = 'DB Backup';
+$pia_lang['Maintenance_Tool_backup_noti_text'] = 'Are you sure you want to exectute the the DB Backup? Be sure that no scan is currently running.';
+$pia_lang['Maintenance_Tool_restore'] = 'DB Restore';
+$pia_lang['Maintenance_Tool_restore_text'] = 'The latest backup can be restored via the button, but older backups can only be restored manually. After the restore, make an integrity check on the database for safety, in case the db was currently in write access when the backup was created.';
+$pia_lang['Maintenance_Tool_restore_noti'] = 'DB Restore';
+$pia_lang['Maintenance_Tool_restore_noti_text'] = 'Are you sure you want to exectute the the DB Restore? Be sure that no scan is currently running.';
+?>
+
diff --git a/front/presence.php b/front/presence.php
index a6cb001a..e466a8b3 100644
--- a/front/presence.php
+++ b/front/presence.php
@@ -17,7 +17,7 @@
 <!-- Content header--------------------------------------------------------- -->
     <section class="content-header">
       <h1 id="pageTitle">
-         Presence by Device
+         <?php echo $pia_lang['Presence_Title'];?>
       </h1>
     </section>
 
@@ -32,7 +32,7 @@
             <div class="small-box bg-aqua pa-small-box-aqua pa-small-box-2">
               <div class="inner"> <h3 id="devicesAll"> -- </h3> </div>
               <div class="icon"> <i class="fa fa-laptop text-aqua-20"></i> </div>
-              <div class="small-box-footer pa-small-box-footer"> All Devices <i class="fa fa-arrow-circle-right"></i> </div>
+              <div class="small-box-footer pa-small-box-footer"> <?php echo $pia_lang['Presence_Shortcut_AllDevices'];?> <i class="fa fa-arrow-circle-right"></i> </div>
             </div>
           </a>
         </div>
@@ -43,7 +43,7 @@
             <div class="small-box bg-green pa-small-box-green pa-small-box-2">
               <div class="inner"> <h3 id="devicesConnected"> -- </h3> </div>
               <div class="icon"> <i class="fa fa-plug text-green-20"></i> </div>
-              <div class="small-box-footer pa-small-box-footer"> Connected <i class="fa fa-arrow-circle-right"></i> </div>
+              <div class="small-box-footer pa-small-box-footer"> <?php echo $pia_lang['Presence_Shortcut_Connected'];?> <i class="fa fa-arrow-circle-right"></i> </div>
             </div>
           </a>
         </div>
@@ -54,7 +54,7 @@
             <div  class="small-box bg-yellow pa-small-box-yellow pa-small-box-2">
               <div class="inner"> <h3 id="devicesFavorites"> -- </h3> </div>
               <div class="icon"> <i class="fa fa-star text-yellow-20"></i> </div>
-              <div class="small-box-footer pa-small-box-footer"> Favorites <i class="fa fa-arrow-circle-right"></i> </div>
+              <div class="small-box-footer pa-small-box-footer"> <?php echo $pia_lang['Presence_Shortcut_Favorites'];?> <i class="fa fa-arrow-circle-right"></i> </div>
             </div>
           </a>
         </div>
@@ -65,7 +65,7 @@
             <div  class="small-box bg-yellow pa-small-box-yellow pa-small-box-2">
               <div class="inner"> <h3 id="devicesNew"> -- </h3> </div>
               <div class="icon"> <i class="ion ion-plus-round text-yellow-20"></i> </div>
-              <div class="small-box-footer pa-small-box-footer"> New Devices <i class="fa fa-arrow-circle-right"></i> </div>
+              <div class="small-box-footer pa-small-box-footer"> <?php echo $pia_lang['Presence_Shortcut_NewDevices'];?> <i class="fa fa-arrow-circle-right"></i> </div>
             </div>
           </a>
         </div>
@@ -76,7 +76,7 @@
             <div  class="small-box bg-red pa-small-box-red pa-small-box-2">
               <div class="inner"> <h3 id="devicesDown"> -- </h3> </div>
               <div class="icon"> <i class="fa fa-warning text-red-20"></i> </div>
-              <div class="small-box-footer pa-small-box-footer"> Down Alerts <i class="fa fa-arrow-circle-right"></i> </div>
+              <div class="small-box-footer pa-small-box-footer"> <?php echo $pia_lang['Presence_Shortcut_DownAlerts'];?> <i class="fa fa-arrow-circle-right"></i> </div>
             </div>
           </a>
         </div>
@@ -87,7 +87,7 @@
             <div  class="small-box bg-gray pa-small-box-gray pa-small-box-2">
               <div class="inner"> <h3 id="devicesHidden"> -- </h3> </div>
               <div class="icon"> <i class="fa fa-eye-slash text-gray-20"></i> </div>
-              <div class="small-box-footer pa-small-box-footer"> Hidden <i class="fa fa-arrow-circle-right"></i> </div>
+              <div class="small-box-footer pa-small-box-footer"> <?php echo $pia_lang['Presence_Shortcut_Archived'];?> <i class="fa fa-arrow-circle-right"></i> </div>
             </div>
           </a>
         </div>
@@ -149,10 +149,14 @@
   <link rel="stylesheet" href="lib/AdminLTE/bower_components/fullcalendar/dist/fullcalendar.print.min.css" media="print">
   <script src="lib/AdminLTE/bower_components/moment/moment.js"></script>
   <script src="lib/AdminLTE/bower_components/fullcalendar/dist/fullcalendar.min.js"></script>
+  <script src="lib/AdminLTE/bower_components/fullcalendar/dist/locale-all.js"></script>
 
 <!-- fullCalendar Scheduler -->
   <link href="lib/fullcalendar-scheduler/scheduler.min.css" rel="stylesheet">
-  <script src="lib/fullcalendar-scheduler/scheduler.min.js"></script>  
+  <script src="lib/fullcalendar-scheduler/scheduler.min.js"></script>
+
+
+
 
 <!-- Dark-Mode Patch -->
 <?php
@@ -196,7 +200,6 @@ function initializeCalendar () {
       center          : 'title',
       right           : 'timelineYear,timelineMonth,timelineWeek'
     },
-    
     defaultView       : 'timelineMonth',
     height            : 'auto',
     firstDay          : 1,
@@ -208,6 +211,7 @@ function initializeCalendar () {
     slotWidth         : '1px',
 
     resourceOrder     : '-favorite,title',
+    locale            : '<?php echo $pia_lang['Presence_CalHead_lang'];?>',
 
     //schedulerLicenseKey: 'CC-Attribution-NonCommercial-NoDerivatives',
     schedulerLicenseKey: 'GPL-My-Project-Is-Open-Source',
@@ -216,7 +220,7 @@ function initializeCalendar () {
       timelineYear: {
         type              : 'timeline',
         duration          : { year: 1 },
-        buttonText        : 'year',
+        buttonText        : '<?php echo $pia_lang['Presence_CalHead_year'];?>',
         slotLabelFormat   : 'MMM',
         // Hack to show partial day events not as fullday events
         slotDuration      : {minutes: 44641}
@@ -225,7 +229,7 @@ function initializeCalendar () {
       timelineQuarter: {
         type              : 'timeline',
         duration          : { month: 3 },
-        buttonText        : 'quarter',
+        buttonText        : '<?php echo $pia_lang['Presence_CalHead_quarter'];?>',
         slotLabelFormat   : 'MMM',
         // Hack to show partial day events not as fullday events
         slotDuration      : {minutes: 44641}
@@ -234,7 +238,7 @@ function initializeCalendar () {
       timelineMonth: {
         type              : 'timeline',
         duration          : { month: 1 },
-        buttonText        : 'month',
+        buttonText        : '<?php echo $pia_lang['Presence_CalHead_month'];?>',
         slotLabelFormat   : 'D',
         // Hack to show partial day events not as fullday events
         slotDuration      : '24:00:01'
@@ -243,7 +247,7 @@ function initializeCalendar () {
       timelineWeek: {
         type              : 'timeline',
         duration          : { week: 1 },
-        buttonText        : 'week',
+        buttonText        : '<?php echo $pia_lang['Presence_CalHead_week'];?>',
         slotLabelFormat   : 'D',
         slotDuration      : '24:00:01'
       }
@@ -321,13 +325,13 @@ function getDevicesPresence (status) {
 
   // Defini color & title for the status selected
   switch (deviceStatus) {
-    case 'all':        tableTitle = 'All Devices';        color = 'aqua';    break;
-    case 'connected':  tableTitle = 'Connected Devices';  color = 'green';   break;
-    case 'favorites':  tableTitle = 'Favorites';          color = 'yellow';  break;
-    case 'new':        tableTitle = 'New Devices';        color = 'yellow';  break;
-    case 'down':       tableTitle = 'Down Alerts';        color = 'red';     break;
-    case 'archived':   tableTitle = 'Archived Devices';   color = 'gray';    break;
-    default:           tableTitle = 'Devices';            color = 'gray';    break;
+    case 'all':        tableTitle = '<?php echo $pia_lang['Presence_Shortcut_AllDevices'];?>';    color = 'aqua';    break;
+    case 'connected':  tableTitle = '<?php echo $pia_lang['Presence_Shortcut_Connected'];?>';     color = 'green';   break;
+    case 'favorites':  tableTitle = '<?php echo $pia_lang['Presence_Shortcut_Favorites'];?>';     color = 'yellow';  break;
+    case 'new':        tableTitle = '<?php echo $pia_lang['Presence_Shortcut_NewDevices'];?>';    color = 'yellow';  break;
+    case 'down':       tableTitle = '<?php echo $pia_lang['Presence_Shortcut_DownAlerts'];?>';    color = 'red';     break;
+    case 'archived':   tableTitle = '<?php echo $pia_lang['Presence_Shortcut_Archived'];?>';      color = 'gray';    break;
+    default:           tableTitle = '<?php echo $pia_lang['Presence_Shortcut_Devices'];?>';       color = 'gray';    break;
   } 
 
   // Set title and color