新建课程不能提交

app/controllers/courses_controller.rb

@@ -1007,7 +1007,6 @@ class CoursesController < ApplicationController
       @issue_custom_fields = IssueCustomField.sorted.all
       @trackers = Tracker.sorted.all
       @course = Course.new
-      @course.safe_attributes = params[:course]
       @syllabus = Syllabus.where("id = #{params[:syllabus_id].to_i}").first if params[:syllabus_id]
       # month = Time.now.month
       render :layout => 'new_base'

app/views/courses/new.html.erb

@@ -3,7 +3,7 @@
 </div>
 <div class="hwork_new pr">
   <ul>
-    <%= labelled_form_for @course do |f| %>
+    <%= form_tag({:controller => 'courses', :action => 'create'}, :id => "new_course") do %>
         <li class="mt5 ml45 mb10">
           <label><span class="c_red">*</span>&nbsp;<%= l(:label_tags_syllabus_name)%>&nbsp;&nbsp;：</label>
           <% if @syllabus.nil? %>

app/views/syllabuses/new.html.erb

@@ -3,7 +3,7 @@
 </div>
 <div class="hwork_new pr">
   <ul>
-    <%= labelled_form_for @syllabus do |f| %>
+    <%= form_tag({:controller => 'syllabuses', :action => 'create'}, :id => "new_syllabus") do %>
         <li class="ml45">
           <label><span class="c_red">*</span>&nbsp;课程名称&nbsp;&nbsp;：</label>
           <input type="text" name="title" id="new_syllabus_name" class="name_input" placeholder="例如：软件工程" maxlength="100" onkeyup="regex_syllabus_name();">

public/javascripts/course.js

@@ -224,7 +224,7 @@ function submit_new_course()
 {
     if(regex_syllabus_option('new')&&regex_course_name('new')&&regex_course_class_period('new')&&regex_time_term('new'))
     {
-        $(".new_course").submit();
+        $("#new_course").submit();
     }
 }