Orbit/app/views/devise/sessions/new.html.erb

   <!-- Orbit Bar -->
    <!--#include virtual="include/orbit_bar.html"-->
    <section id="main-wrap">
      <div class="sign-in have-other-sign-in">
<!--         <p class="alert alert-error in fade">You need to sign in.</p>
 -->    
        <% flash.each do |key, msg| %>
		    <%= content_tag :p, msg, :class => [key, "alert alert-error in fade"] %>
		<% end %>

 		<div class="form">
          <h3 class="login-logo">Log In to Orbit</h3>
          <div>
            <input name="utf8" type="hidden" value="" />
            <input name="authenticity_token" type="hidden" value="" />
          </div>
<!--           <div class="other-sign-in">
            <a class="btn btn-primary" type="submit">Other Sign In</a>
            <p>or</p>
          </div> -->
          <div class="form-block">
            <div class="form-list clearfix">
              <form class="content" accept-charset="UTF-8" action="/users/sign_in" method="post">
               <%= form_for resource, :as => resource_name, :url => session_path(resource_name), :html => {:class => 'content'} do |f| %>

                <div class="control-group clear">
                  <label for="user_email">
                    <i class="icon-user"></i>
                  </label>
                 	<%= f.text_field :user_id, :placeholder => t("users.user_id"), :id=>"user_email" %>
                </div>
                <div class="control-group clear">
                  <label for="user_password">
                    <i class="icon-lock"></i>
                  </label>
                  <%= f.password_field :password, :placeholder => t(:dots), :id=>"user_password" %>
                </div>
                  <%= content_tag :button, t(:login), :type => :submit, :class => 'btn btn-primary' %>
              </form>

              <form class="content" accept-charset="UTF-8" action="/users/sign_in" method="post">
                <div class="control-group clear">
                  <label for="user_email">
                    <i class="icon-user"></i>
                  </label>
                  <input type="text" id="user_id" name="user[id]" placeholder="帳號" />
                </div>
                <div class="control-group clear">
                  <label for="user_password">
                    <i class="icons-mail"></i>
                  </label>
                  <input type="text" id="user_email" name="user[email]" placeholder="電子郵件" />
                </div>
              </form>
            </div>
          </div>
         <!--  <div class="register">
            <button class="btn btn-inverse" type="submit">Register</button>
          </div> -->
        <% end %>

        </div>
      </div>
    </section>