From b99f089ae7f8cd9f4947eb302ab3473de19c6731 Mon Sep 17 00:00:00 2001
From: Tim Mickel <tim.mickel@gmail.com>
Date: Wed, 9 Nov 2016 11:22:17 -0500
Subject: [PATCH] Fix #327, "switch costume to [next/previous]" (#330)

---
 src/blocks/scratch3_looks.js | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/blocks/scratch3_looks.js b/src/blocks/scratch3_looks.js
index f37e9a8fd..60d95fd50 100644
--- a/src/blocks/scratch3_looks.js
+++ b/src/blocks/scratch3_looks.js
@@ -94,11 +94,11 @@ Scratch3LooksBlocks.prototype._setCostumeOrBackdrop = function (target,
         var costumeIndex = target.getCostumeIndexByName(requestedCostume);
         if (costumeIndex > -1) {
             target.setCostume(costumeIndex);
-        } else if (costumeIndex === 'previous costume' ||
-                   costumeIndex === 'previous backdrop') {
+        } else if (requestedCostume === 'previous costume' ||
+                   requestedCostume === 'previous backdrop') {
             target.setCostume(target.currentCostume - 1);
-        } else if (costumeIndex === 'next costume' ||
-                   costumeIndex === 'next backdrop') {
+        } else if (requestedCostume === 'next costume' ||
+                   requestedCostume === 'next backdrop') {
             target.setCostume(target.currentCostume + 1);
         } else {
             var forcedNumber = Cast.toNumber(requestedCostume);