The following code is used to insert a sitemap in a page:
<SITEMAP><ROOTEDITORIALID>0xx</ROOTEDITORIALID></SITEMAP>
The <ROOTEDITORIALID> element is optional. If it is present, it must specify the editorial ID of the page to be used as the root of the sitemap. If absent, the site root page is used as the root of the sitemap. The case of the xml data island does not matter.