diff --git a/app/controllers/projects_controller.rb b/app/controllers/projects_controller.rb
index 1fbcec3ec..efe32a80b 100644
--- a/app/controllers/projects_controller.rb
+++ b/app/controllers/projects_controller.rb
@@ -344,7 +344,7 @@ class ProjectsController < ApplicationController
     @course_tag = params[:project][:project_type]
     if(@course_tag=="1")
       @course = Course.new
-      @course.extra=params[:project][:identifier]
+      @course.extra='course' + DateTime.parse(Time.now.to_s).strftime('%Y-%m-%d_%H-%M-%S').to_s
       @course.safe_attributes = params[:project][:course]
       @course.tea_id = User.current.id
       @course.save
@@ -355,6 +355,9 @@ class ProjectsController < ApplicationController
     @trackers = Tracker.sorted.all
     @project = Project.new
     @project.safe_attributes = params[:project]
+    if @course_tag == '1'
+      @project.identifier = @course.extra
+    end
 
     if validate_parent_id && @project.save
       @project.set_allowed_parent!(params[:project]['parent_id']) if params[:project].has_key?('parent_id')
diff --git a/app/views/projects/_course_form.html.erb b/app/views/projects/_course_form.html.erb
index 5a346f735..6fb8ad996 100644
--- a/app/views/projects/_course_form.html.erb
+++ b/app/views/projects/_course_form.html.erb
@@ -6,10 +6,10 @@
 <p><%= f.text_field :name, :required => true, :size => 60, :style => "width:490px;" %></p>
 
 <p style="margin-left:-10px;padding-right: 20px;"><%= f.text_area :description, :rows => 8, :class => 'wiki-edit', :style => "font-size:small;width:490px;margin-left:10px;" %></p><!--by young-->
-<p><%= f.text_field :identifier, :required => true, :size => 60, :style => "width:488px;", :disabled => @project.identifier_frozen?, :maxlength => Project::IDENTIFIER_MAX_LENGTH %>
+<!-- <p><%= f.text_field :identifier, :required => true, :size => 60, :style => "width:488px;", :disabled => @project.identifier_frozen?, :maxlength => Project::IDENTIFIER_MAX_LENGTH %>
 <% unless @project.identifier_frozen? %>
   <em class="info"><%= l(:text_length_between, :min => 1, :max => Project::IDENTIFIER_MAX_LENGTH) %> <%= l(:text_project_identifier_info).html_safe %></em>
-<% end %></p>
+<% end %></p> -->
 
 
  <%= f.fields_for @course do |m| %>