diff --git a/index.html b/index.html
index 01ca3003..a4f75a4f 100644
--- a/index.html
+++ b/index.html
@@ -161,7 +161,7 @@
     <!-- Radio Buttons -->
     <!-- Should change depending on category -->
     <div class="radio-options">
-      <input type="radio" name="category" id="science" value="science" checked />
+      <input type="radio" name="category" id="science" value="science" checked/>
       <label for="science">Science</label>
 
       <input type="radio" name="category" id="philosophy" value="philosophy" />
@@ -180,5 +180,37 @@
     <a href="https://git.tsugutsugugo.com/explore/repos">Source</a> | <a href="https://docs.tsugutsugugo.com/">Docs</a>
   </div>
 
+  <script>
+    // Wait until the DOM is fully loaded
+    document.addEventListener('DOMContentLoaded', function() {
+      const form = document.querySelector('.search-form');
+
+      form.addEventListener('submit', function(e) {
+        // Get which radio button is checked
+        const selectedValue = document.querySelector('input[name="category"]:checked').value;
+
+        // Change the form's action based on the selected category
+        switch (selectedValue) {
+          case 'science':
+            e.target.action = 'https://science.tsugutsugugo.com/yacysearch.html?query={}';
+            break;
+          case 'philosophy':
+            e.target.action = 'https://sophos.tsugutsugugo.com/yacysearch.html?query={}';
+            break;
+          case 'tech':
+            e.target.action = 'https://tech.tsugutsugugo.com/yacysearch.html?query={}';
+            break;
+          case 'discover':
+            e.target.action = 'https://web.tsugutsugugo.com/yacysearch.html?query={}';
+            break;
+          default:
+            // fallback to science
+            e.target.action = 'https://science.tsugutsugugo.com/yacysearch.html?query={}';
+        }
+      });
+    });
+  </script>
+
+
 </body>
 </html>