def new
  @comment = Comment.new
    
  respond_to do |format|
    format.html # new.html.erb
    format.js # new.rjs
  end
end

def create
  @comment = Comment.new(params[:comment])
  @comment.user = User.find(session[:user_id])
  @comment.post = @post
  
  respond_to do |format|
    if @comment.duplicate? or  @post.comments << @comment
      format.html { redirect_to profile_for(@post.blog.user)}
      format.js # create.rjs
    else
      format.html { redirect_to new_comment_url(@post.blog, @post) }
      format.js { render :nothing => true }
    end
  end
end

