diff --git a/examples/fibo.js b/examples/fibo.js
new file mode 100644
index 00000000..bc0445d6
--- /dev/null
+++ b/examples/fibo.js
@@ -0,0 +1,9 @@
+var fibs = [0, 1];
+var ticker = window.setInterval(function () {
+    phantom.log(fibs[fibs.length - 1]);
+    fibs.push(fibs[fibs.length - 1] + fibs[fibs.length - 2]);
+    if (fibs.length > 10) {
+        window.clearInterval(ticker);
+        phantom.exit();
+    }
+}, 300);