Short Sitemap question

If I have a sitemap_index.xml file and have it in root of my website.

Then I have a sitemap.xml file located a couple of directories down, which I referr to in the sitemap_index.xml file.

Will I be able to have urls inside the sitemap.xml file which are on higher levels than itself is, for example in the root directory?

Thanks

EDIT:

sitemap_index.xml:

 <sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
   <sitemap>
      <loc>http://www.domain.se/directory/sitemap.xml</loc>
      <lastmod>2010-09-28</lastmod>
   </sitemap>

sitemap.xml:

<url>
      <loc>http://www.domain.se/help.html</loc>
      <lastmod>2010-09-28</lastmod>
      <changefreq>monthly</changefreq>
      <priority>0.7</priority>
   </u开发者_开发百科rl>

sitemap.xml is in a subdirectory, and here it has a of a directory above itself. Will it still work?

If you need more input let me know.

---

According to sitemaps.org, it indeed is not possible to do this:

The location of a Sitemap file determines the set of URLs that can be included in that Sitemap. A Sitemap file located at http://example.com/catalog/sitemap.xml can include any URLs starting with http://example.com/catalog/ but can not include URLs starting with http://example.com/images/.