# File lib/scrubyt/core/navigation/agents/mechanize.rb, line 142
          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