def obtain_additional_data(key = nil, check = nil)

      if check.blank?
        return nil if @content.blank? || !@content[0].blank?
      end
    	
    	post = 
    		if check.blank?
    			@content.post_additional_data
    		else
    			obtain_record(check).post_additional_data
    		end

      return nil if post.blank?

      data = @json.decode(post)
      if key.blank?
        data
      else
        data[key]
      end

    end
def obtain_additional_data(key = nil, check = nil)

      if check.blank?
        return nil if @content.blank? || !@content[0].blank?
      end
    	
    	post = 
    		if check.blank?
    			@content.post_additional_data
    		else
    			obtain_record(check).post_additional_data
    		end

      return nil if post.blank?

      data = @json.decode(post)
      if key.blank?
        data
      else
        data[key]
      end

    end
returns the additional data record
 Params:
 +key+:: the key to the additional data that you want to return - if this is nil it will return all of the additional data for the given record
 +check+:: ID, post_slug, or post_title of the post record - if this is nil it will use the @content variable (the current page)