diff --git a/src/common/js/utils.js b/src/common/js/utils.js
new file mode 100644
index 0000000..51b48a3
--- /dev/null
+++ b/src/common/js/utils.js
@@ -0,0 +1,3 @@
+export async function sleep(timeout) {
+  return new Promise( (resolve, reject) => setTimeout(() => resolve(), timeout));
+}