diff --git a/public/js/text.js b/public/js/text.js
index eafc1c6..8f7b72e 100644
--- a/public/js/text.js
+++ b/public/js/text.js
@@ -8,16 +8,23 @@ document.addEventListener('DOMContentLoaded', () => {
             h1.textContent = text.name;
             document.getElementById('text-detail').appendChild(h1);
 
-            return fetch('/api/nodes/' + textId );
-        })
-        .then(res => res.json())
-        .then(nodes => {
-            const tree = buildTree(nodes);
-            const ul = renderTree(tree);
-            document.getElementById('text-detail').appendChild(ul);
+            return fetchAndRenderNodes(textId);
         });
 });
 
+function fetchAndRenderNodes(textId) {
+    return fetch('/api/nodes/' + textId)
+        .then(res => res.json())
+        .then(nodes => {
+            const existing = document.querySelector('#text-detail > ul');
+            if (existing) existing.remove();
+
+            const tree = buildTree(nodes);
+            const ul = renderTree(tree, textId);
+            document.getElementById('text-detail').appendChild(ul);
+        });
+}
+
 function buildTree(nodes) {
     const map = {};
     nodes.forEach(node => {