diff --git a/src/contentScripts/communityConsole/utils.js b/src/contentScripts/communityConsole/utils.js
new file mode 100644
index 0000000..ca452b3
--- /dev/null
+++ b/src/contentScripts/communityConsole/utils.js
@@ -0,0 +1,27 @@
+export function removeChildNodes(node) {
+  while (node.firstChild) {
+    node.removeChild(node.firstChild);
+  }
+}
+
+export function getNParent(node, n) {
+  if (n <= 0) return node;
+  if (!('parentNode' in node)) return null;
+  return getNParent(node.parentNode, n - 1);
+}
+
+export function createExtBadge() {
+  var badge = document.createElement('div');
+  badge.classList.add('TWPT-badge');
+  badge.setAttribute(
+      'title', chrome.i18n.getMessage('inject_extension_badge_helper', [
+        chrome.i18n.getMessage('appName')
+      ]));
+
+  var badgeI = document.createElement('i');
+  badgeI.classList.add('material-icon-i', 'material-icons-extended');
+  badgeI.textContent = 'repeat';
+
+  badge.append(badgeI);
+  return badge;
+}