diff --git a/static/javascript/lesgv.js b/static/javascript/lesgv.js
index 64dbb91..f17a3a0 100644
--- a/static/javascript/lesgv.js
+++ b/static/javascript/lesgv.js
@@ -16,12 +16,4 @@ if (idvalueInput != null) {
 }
 
 
-function changeUsername () {
-   username = document.getElementById("username");
-   calcCn = document.getElementById("calc-cn");
-   username.value = username.value.toLowerCase().replace(/[^A-z0-9.-]/g, '');
-  calcCn.innerText = "Login Name et Courriel seront : " + username.value.split("@")[0] + "@lesgv.com";
-}
-if (document.getElementById("username") != null) {
-  document.getElementById("username").addEventListener("change",changeUsername);
-}
+
diff --git a/templates/invite_new_account.html b/templates/invite_new_account.html
index d5674a8..103a461 100644
--- a/templates/invite_new_account.html
+++ b/templates/invite_new_account.html
@@ -87,5 +87,15 @@
   {{end}}
   <button type="submit" class="btn btn-primary">Créer le compte</button>
 </form>
+
+<script lang="javascript">
+  function changeUsername () {
+   username = document.getElementById("username");
+   calcCn = document.getElementById("calc-cn");
+   username.value = username.value.toLowerCase().replace(/[^A-z0-9.-]/g, '');
+  calcCn.innerText = "Login Name et Courriel seront : " + username.value.split("@")[0] + "@lesgv.com";
+}
+document.getElementById("username").addEventListener("change",changeUsername);
+</script>
 {{end}}
 {{end}}
\ No newline at end of file