Nice asset

  def nice_asset(a,thumb=nil)
    if a and a.attachment and a.attachment.url
      if a.is_image?
        if thumb
          image = image_tag a.attachment.images.send(thumb).url, :alt=>a.title
        else
          image = image_tag a.attachment.url, :alt=>a.title
        end
        if a.linkable && a.linkable.url
          link_to image, a.linkable.url
        else
          image
        end
      else
        a.attachment.url.split('/').last
      end
    end
  end