Cheaper createId().

diff --git a/www/js/chessboard-0.3.0.js b/www/js/chessboard-0.3.0.js
index b97961720e66dbd17c34b88be360c10b60883e8d..477d778d7562ba81e6726159df84ae4d7548a777 100644 (file)
--- a/www/js/chessboard-0.3.0.js
+++ b/www/js/chessboard-0.3.0.js
@@ -259,12 +259,9 @@ var BOARD_BORDER_SIZE = 2,
 // JS Util Functions
 //------------------------------------------------------------------------------
 
-// http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript
+let id_counter = 0;
 function createId() {
-  return 'xxxx-xxxx-xxxx-xxxx-xxxx-xxxx-xxxx-xxxx'.replace(/x/g, function(c) {
-    var r = Math.random() * 16 | 0;
-    return r.toString(16);
-  });
+  return 'chesspiece-id-' + (id_counter++);
 }
 
 function deepCopy(thing) {