# File lib/scrubyt/core/navigation/fetch_action.rb, line 194
    def self.handle_relative_path(doc_url)
      if @@base_dir == nil
        @@base_dir = doc_url.scan(/.+\//)[0] if @@current_doc_protocol == 'file'
      else
        @@current_doc_url = ((@@base_dir + doc_url) if doc_url !~ /#{@@base_dir}/)
      end
    end