--- a/calls.json.php
+++ b/calls.json.php
@@ -1,48 +1,53 @@
 <?php
 include('common.inc.php');
-function getTGIDValuesByHour($TGID, $timeFrom, $timeTo) {
+function getTGIDValuesByHour($TGID, $timeFrom, $timeTo)
+{
     global $conn;
-    $sth = $conn->prepare( 'select tgid, min(call_timestamp) as time, count(*), min(length), max(length), avg(length), stddev(length) from recordings
+    $sth = $conn->prepare('select tgid, min(call_timestamp) as time, count(*), min(length), max(length), avg(length), stddev(length) from recordings
 where call_timestamp between to_timestamp(?) and to_timestamp(?)
             group by tgid, date_trunc(\'hour\', call_timestamp) order by time');
 
     $sth->execute(Array($timeFrom, $timeTo));
-        return  $sth->fetchAll();
+    return $sth->fetchAll();
 
 
 }
 
-function getTGIDValuesByDay($TGID, $dayFrom, $dayTo) {
+function getTGIDValuesByDay($TGID, $dayFrom, $dayTo)
+{
     global $conn;
     $sth = $conn->prepare('select min(time) as time, min(value), max(value), avg(value), stddev(value) from sensor_values where sensor_id = ?
             group by sensor_id, date_trunc(\'day\', time) order by time');
 
-    $sth->execute( Array($TGID));
-    return  $sth->fetchAll();
+    $sth->execute(Array($TGID));
+    return $sth->fetchAll();
 }
-function getTGIDDataYears($TGID, $timeFrom, $timeTo) {
+function getTGIDDataYears($TGID, $timeFrom, $timeTo)
+{
     global $conn;
     $sth = $conn->prepare("select distinct extract('year' from call_timestamp) as year from recordings where tgid = ? order by year");
 
     $sth->execute(Array($TGID));
-    return  $sth->fetchAll();
+    return $sth->fetchAll();
 }
 
-function getTGIDDataMonths($TGID, $timeFrom, $timeTo) {
+function getTGIDDataMonths($TGID, $timeFrom, $timeTo)
+{
     global $conn;
     $sth = $conn->prepare("select distinct extract('month' from call_timestamp) as month, extract('year' from call_timestamp) as year from recordings where tgid = ?  order by year, month");
 
     $sth->execute(Array($TGID));
-    return  $sth->fetchAll();
+    return $sth->fetchAll();
 }
 
-function getTGIDDataDays($TGID, $timeFrom, $timeTo) {
+function getTGIDDataDays($TGID, $timeFrom, $timeTo)
+{
     global $conn;
     $sth = $conn->prepare("select distinct extract('day' from call_timestamp) as day, extract('month' from call_timestamp) as month, extract('year' from call_timestamp) as year from recordings where tgid = ?  order by year,month,day");
 
 
     $sth->execute(Array($TGID));
-    return  $sth->fetchAll();
+    return $sth->fetchAll();
 }
 $action = (isset($_REQUEST['action']) ? $_REQUEST['action'] : '');
 $TGID = (isset($_REQUEST['tgid']) ? $_REQUEST['tgid'] : '');
@@ -58,23 +63,23 @@
     $days = getTGIDDataDays($TGID, $timefrom, $timeto);
 
     echo json_encode(Array("years" => $years, "months" => $months, "days" => $days
-                    ));
+    ));
 }
 
 
-if (strpos($action,"graph") !== false) {
+if (strpos($action, "graph") !== false) {
     $values = getTGIDValuesByHour($TGID, $timefrom, $timeto);
     $label = $TGID;
     $data = Array();
     $tzoffset = get_timezone_offset("UTC");
     foreach ($values as $value) {
         if ($action == "graphlength") {
-        $data[$value['tgid']][] = Array((strtotime($value['time']) + $tzoffset) * 1000, intval($value['avg']));
+            $data[$value['tgid']][] = Array((strtotime($value['time']) + $tzoffset) * 1000, intval($value['avg']));
         } else if ($action == "graphcount") {
             $data[$value['tgid']][] = Array((strtotime($value['time']) + $tzoffset) * 1000, intval($value['count']));
         }
     }
-   echo json_encode(Array("label" => $label, "data" => $data,
+    echo json_encode(Array("label" => $label, "data" => $data,
             "previous" => Array(
                 "from" => $timefrom - (24 * 60 * 60),
                 "to" => $timefrom)