diff --git a/Js/switch-faction.js b/Js/switch-faction.js
new file mode 100644
index 0000000..fbe2585
--- /dev/null
+++ b/Js/switch-faction.js
@@ -0,0 +1,8 @@
+function toggleMode() {
+  var linkElement = document.getElementById('styles-theme');
+  if (linkElement.getAttribute('href') === 'css/styles-jour.css') {
+    linkElement.setAttribute('href', 'css/alliance.css');
+  } else {
+    linkElement.setAttribute('href', 'css/horde.css');
+  }
+}
\ No newline at end of file