    # File lib/compass/sass_extensions/sprites/sprite_map.rb, line 25
            def self.relative_name(sprite)
              sprite = File.expand_path(sprite)
              Compass.configuration.sprite_load_path.each do |path|
                path = File.expand_path(path)
                if sprite.include?(path)
                  return sprite.gsub("#{path}/", "")
                end
              end
            end