code: def start_output (self):
          
          super(HtmlLogger, self).start_output()
          header = {
              "encoding": self.get_charset_encoding(),
              "title": configuration.App,
              "body": self.colorbackground,
              "link": self.colorlink,
              "vlink": self.colorlink,
              "alink": self.colorlink,
              "url": self.colorurl,
              "error": self.colorerror,
              "valid": self.colorok,
              "warning": self.colorwarning,
          }
          self.write(HTML_HEADER % header)
          self.comment("Generated by %s" % configuration.App)
          if self.has_part('intro'):
              self.write(u"<h2>"+configuration.App+
                         "</h2><br/><blockquote>"+
                         configuration.Freeware+"<br/><br/>"+
                         (_("Start checking at %s") %
                         strformat.strtime(self.starttime))+
                         os.linesep+"<br/>")
              self.check_date()
          self.flush()
docs: Write start of checking info.