diff --git a/public/javascripts/application.js b/public/javascripts/application.js
index a19ff23..d626d03 100644
--- a/public/javascripts/application.js
+++ b/public/javascripts/application.js
@@ -431,10 +431,10 @@ function scmEntryClick(id, url) {
 }
 
 function randomKey(size) {
-  var chars = new Array('0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z');
+  var chars = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz';
   var key = '';
-  for (i = 0; i < size; i++) {
-    key += chars[Math.floor(Math.random() * chars.length)];
+  for (var i = 0; i < size; i++) {
+    key += chars.charAt(Math.floor(Math.random() * chars.length));
   }
   return key;
 }