diff --git a/index.php b/index.php
index 169dc11..b5bb70f 100644
--- a/index.php
+++ b/index.php
@@ -38,7 +38,7 @@
     $result = $db->query($strSQL);
     $arrMarker = array();
     $arrDescription = array();
-    
+    $id=0;
     while ($row = $result->fetch(PDO::FETCH_ASSOC)) {
         $id=$row['id'];
         $topic = $row['topic'];