From 460f93ca8d27429153bbdf45235cf190fe371bdd Mon Sep 17 00:00:00 2001
From: walterhiggins <walter.higgins@gmail.com>
Date: Sat, 26 Jan 2013 09:57:43 +0000
Subject: [PATCH] warn if putSign() is called with block id other than 63 or 68
 issue #39

---
 src/main/javascript/core/_primitives.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/main/javascript/core/_primitives.js b/src/main/javascript/core/_primitives.js
index 8ae055a..93207aa 100644
--- a/src/main/javascript/core/_primitives.js
+++ b/src/main/javascript/core/_primitives.js
@@ -52,6 +52,8 @@ var global = this;
     };
 
     var _putSign = function(texts, x, y, z, blockId, meta){
+        if (blockId != 63 && blockId != 68)
+            throw new Error("Invalid Parameter: blockId must be 63 or 68");
         putBlock(x,y,z,blockId,meta);
         var block = _getBlockObject(x,y,z);
         state = block.state;