The purpose of this dialog box is to customize the appearance of your site map.
The home page must be on the local site. If you don't specify a home page, or if Dreamweaver cannot find a file called index.html or index.htm at the root, Dreamweaver prompts you to select a home page when you open the site map.
If a page is hidden, its name and links appear in italics. For information about hiding files, see Showing and hiding site map files.
A dependent file is an image or other non-HTML content that the browser loads when it loads the main page.