diff --git a/README.md b/README.md
index 8af81ac2..ed7df1b9 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 1. Replace `<your_account>` with your Github username in the link
-    - [DEMO LINK](https://<your_account>.github.io/js_gallery_DOM/)
+    - [DEMO LINK](https://Ruslan-oss-max0.github.io/js_gallery_DOM/)
 2. Follow [this instructions](https://mate-academy.github.io/layout_task-guideline/)
     - Run `npm run test` command to test your code;
     - Run `npm run test:only -- -n` to run fast test ignoring linter;
diff --git a/src/scripts/main.js b/src/scripts/main.js
index ad9a93a7..000a7194 100644
--- a/src/scripts/main.js
+++ b/src/scripts/main.js
@@ -1 +1,16 @@
 'use strict';
+
+const largeImg = document.getElementById('largeImg');
+const thumbs = document.getElementById('thumbs');
+
+thumbs.addEventListener('click', (evn) => {
+  const target = evn.target;
+
+  evn.preventDefault();
+
+  if (target.tagName === 'A') {
+    largeImg.src = target.href;
+  } else if (target.tagName === 'IMG') {
+    largeImg.src = target.parentNode.href;
+  }
+});