Add more reverse sort orders

expenses.php

@@ -1,4 +1,6 @@
 <?php include("inc_all.php");
+
+//$o = "DESC";
   
 if(!empty($_GET['sb'])){
   $sb = mysqli_real_escape_string($mysqli,$_GET['sb']);
@@ -6,6 +8,12 @@ if(!empty($_GET['sb'])){
   $sb = "expense_date";
 }
 
+// Reverse default sort
+if(!isset($_GET['o'])){
+  $o = "DESC";
+  $disp = "ASC";
+}
+
 if(empty($_GET['canned_date'])){
   //Prevents lots of undefined variable errors.
   // $dtf and $dtt will be set by the below else to 0000-00-00 / 9999-00-00