Bugfix

src/transaction.js

@@ -86,7 +86,7 @@ Transaction.prototype.addOutput = function (address, value) {
       value = value.toByteArrayUnsigned().reverse();
       while (value.length < 8) value.push(0);
     } else if (typeof value == "number") {
-      value = util.numToBytes(value);
+      value = util.numToBytes(value,8);
     } else if (util.isArray(value)) {
       // Nothing to do
     }

src/util.js

@@ -26,7 +26,7 @@ module.exports = {
    * Create a byte array representing a number with the given length
    */
   numToBytes: function(num,bytes) {
-    if (bytes == 0 || (bytes === null && num === 0)) return [];
+    if (bytes == 0 || (bytes === undefined && num === 0)) return [];
     else return [num % 256].concat(module.exports.numToBytes(Math.floor(num / 256),bytes-1));
   },
   /**