Always save a new file before creating a document-relative path; a document-relative path is not valid without a definite starting point. If you create a document-relative path before saving the file, Dreamweaver temporarily uses file is saved; when you save the file, path into a relative path.
A hypertext link with the name of the linked file is placed at the bottom of the selected HTML file. This method works well when you are building your site and you want to create links across the site quickly.