diff --git a/lms/templates/login_modal.html b/lms/templates/login_modal.html
index e25030cca1..393e76ee78 100644
--- a/lms/templates/login_modal.html
+++ b/lms/templates/login_modal.html
@@ -8,7 +8,7 @@
       <hr>
     </header>
 
-    <form id="login_form" method="post" data-remote="true" action="/login">
+    <form id="login_form" class="login_form" method="post" data-remote="true" action="/login">
       <label>E-mail</label>
       <input name="email" type="email" placeholder="E-mail">
       <label>Password</label>
diff --git a/lms/templates/portal/course_about.html b/lms/templates/portal/course_about.html
index 0c6958c16c..bb00a6abf0 100644
--- a/lms/templates/portal/course_about.html
+++ b/lms/templates/portal/course_about.html
@@ -30,11 +30,11 @@
       <script type="text/javascript">
       (function() {
         $(".register").click(function() {
-          if ($("#login_form .enroll_fieldset").length === 0) {
-            $("#login_form").append( $(".enroll_fieldset").first().clone() );
+          if ($(".login_form .enroll_fieldset").length === 0) {
+            $(".login_form").append( $(".enroll_fieldset").first().clone() );
           }
-          if ($("#register_form .enroll_fieldset").length === 0) {
-            $("#register_form").append( $(".enroll_fieldset").first().clone() );
+          if ($(".register_form .enroll_fieldset").length === 0) {
+            $(".register_form").append( $(".enroll_fieldset").first().clone() );
           }
         });
       })(this)
diff --git a/lms/templates/signup_modal.html b/lms/templates/signup_modal.html
index 5ea4af1608..26b248d0ee 100644
--- a/lms/templates/signup_modal.html
+++ b/lms/templates/signup_modal.html
@@ -13,7 +13,7 @@
         <hr>
       </header>
 
-      <form id="register_form" method="post" data-remote="true" action="/create_account">
+      <form id="register_form" class="register_form" method="post" data-remote="true" action="/create_account">
         <div class="notice"></div>
         <div id="register_error" class="modal-form-error" name="register_error"></div>
         <div id="register_error" name="register_error"></div>