# 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