The problem with Ajax based micropost's comments

I have ajax based micropost's comments on the user page. It works, but
not correctly. When I submit a new comment to ANY micropost, it always
posts to the LAST micropost! Then, if I refresh the page by "F5",
everything falls into place - the new comment is in the correct
micropost. What I'm doing wrong? Thanks in advance.

comment.rb

class Comment < ActiveRecord::Base
  attr_accessible :comment_content
  belongs_to :user
  belongs_to :micropost
end

comments_controller.rb

class CommentsController < ApplicationController
  before_filter :signed_in_user, only: [:create, :destroy]

   def create
    @micropost = Micropost.find(params[:micropost_id])
    @comment = Comment.new(params[:comment])
    @comment.micropost = @micropost
    @comment.user = current_user
      respond_to do |format|
      @comment.save
           format.html { redirect_to current_user }
           format.js
      end
   end
end

_micropost.html.erb

<tr>
  <td class="micropost">
    <span class="content"><%= wrap(micropost.content) %></span>
    <span class="timestamp">
    Posted <%= time_ago_in_words(micropost.created_at) %> ago.
    </span>
    <%= render 'shared/comment_form', micropost: micropost %>
   <div id="comments">
     <%= render micropost.comments %>
   </div>
  </td>
</tr>

_comment_form.html.erb

<%= form_for ([micropost, @comment]), :remote => true do |f| %>
<%= render 'shared/error_messages', object: f.object %>
<%= f.text_area :comment_content, :size => "40x2" %>
  <button class="btn" type="submit">
    Comment
  </button>
<% end %>

_comment.html.erb

<span style="width: 100%; background:#dff0d8"><%=
wrap(comment.comment_content) %></span>
<span class="timestamp">
Posted by <%= comment.user.name %> <%=
time_ago_in_words(comment.created_at) %> ago.
</span>

create.js.erb

$('#comments').html("<%= escape_javascript(render(:partial =>
@micropost.comments)) %>");

I have ajax based micropost's comments on the user page. It works, but
not correctly. When I submit a new comment to ANY micropost, it always
posts to the LAST micropost! Then, if I refresh the page by "F5",
everything falls into place - the new comment is in the correct
micropost. What I'm doing wrong? Thanks in advance.

First look in development.log and check that the correct parameters
are being passed in. Then have a look at the Rails Guide on Debugging
which will show you a number of techniques that can be used to debug
the code.

Colin