From f62875efada3bc194afb809bbcac32484b5b7940 Mon Sep 17 00:00:00 2001
From: "Ryan X. Charles" <ryan@bitpay.com>
Date: Mon, 6 Jan 2014 14:52:23 -0500
Subject: [PATCH] negative indexes don't work in javascript

---
 Script.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Script.js b/Script.js
index 4c2aa49..dc76edf 100644
--- a/Script.js
+++ b/Script.js
@@ -118,8 +118,8 @@ function spec(b) {
   {
     return (this.chunks.length > 3 &&
     	    isSmallIntOp(this.chunks[0]) &&
-    	    isSmallIntOp(this.chunks[-2]) &&
-	    this.chunks[-1] == OP_CHECKMULTISIG);
+    	    isSmallIntOp(this.chunks[this.chunks.length-2]) &&
+	    this.chunks[this.chunks.length-1] == OP_CHECKMULTISIG);
   };
 
   // is this a script form we know?