add focus on login page load

Views/Login/Login.cshtml

@@ -6,4 +6,13 @@
 
 <form method="post">
     <input type="password" name="passphrase" placeholder="Passphrase" />
-</form>
+</form>
+
+@section scripts {
+
+    <script>
+        $(function () {
+            $('input[name=passphrase]').focus();
+        });
+    </script>
+}