--controller--

 def photo
    @photos = Photo.find(:all, :conditions => ["album_id = ?", 1])
    @photo = Photo.find(params[:id])
    render :partial => 'panic/photo'
  end

--link_to ---


 <li>
      <%= link_to_remote('photos',
                         :update => "front",
                         :url =>{ :controller => :panic, :action => :photo, :id => 1 },
                         :postion => 'after') %>
    </li>