def create_title_page(self, filename, title=''):
        """
        Output the title page.
        """
        fobj = open(filename, "w")
        fobj.write(self.header % (title, self.style))

        fobj.write("<h1>%s</h1>\n" % title)
        fobj.write("<h2>Memory distribution over time</h2>\n")
        fobj.write(self.charts['snapshots'])

        fobj.write("<h2>Snapshots statistics</h2>\n")
        fobj.write('<table id="nb">\n')

        classlist = list(self.index.keys())
        classlist.sort()

        for snapshot in self.snapshots:
            fobj.write('<tr><td>\n')
            fobj.write('<table id="tl" rules="rows">\n')
            fobj.write("<h3>%s snapshot at %s</h3>\n" % (
                snapshot.desc or 'Untitled',
                pp_timestamp(snapshot.timestamp)
            ))

            data = {}
            data['sys']      = pp(snapshot.system_total.vsz)
            data['tracked']  = pp(snapshot.tracked_total)
            data['asizeof']  = pp(snapshot.asizeof_total)
            data['overhead'] = pp(getattr(snapshot, 'overhead', 0))

            fobj.write(self.snapshot_summary % data)

            if snapshot.tracked_total:
                fobj.write(self.snapshot_cls_header)
                for classname in classlist:
                    data = snapshot.classes[classname].copy()
                    data['cls'] = '<a href="%s">%s</a>' % (self.relative_path(self.links[classname]), classname)
                    data['sum'] = pp(data['sum'])
                    data['avg'] = pp(data['avg'])
                    fobj.write(self.snapshot_cls % data)
            fobj.write('</table>')
            fobj.write('</td><td>\n')
            if snapshot.tracked_total:
                fobj.write(self.charts[snapshot])
            fobj.write('</td></tr>\n')

        fobj.write("</table>\n")
        fobj.write(self.footer)
        fobj.close()
Output the title page.