diff --git a/.htaccess.sample b/.htaccess.sample
index 57c5ee8..3ecdd8f 100644
--- a/.htaccess.sample
+++ b/.htaccess.sample
@@ -22,7 +22,7 @@ require valid-user
   Allow from all
 </FilesMatch>
 
-<FilesMatch "\.(css|js|php|html)$">
+<FilesMatch "\.(css|js|php|html|htm|var)$">
   Order Allow,Deny
   Allow from all
 </FilesMatch>
diff --git a/submit.php b/submit.php
index 8401ddd..1a01aa1 100644
--- a/submit.php
+++ b/submit.php
@@ -17,8 +17,8 @@
 <?php
 // Reads variables of HTML form in index.php
 $ACTION = $_POST['action'];
-$USER = $_POST['user'];
-$PASS = $_POST['pass'];
+$USER = isset($_POST['user']) ? $_POST['user'] : ''; // surpress empty variable errors
+$PASS = isset($_POST['pass']) ? $_POST['pass'] : '';
 $SURE = $_POST['sure'];
 
 // Sanitize variables