This attribute names a relationship between the linked document and the current document. Possible values for this attribute include alternate, bookmark, chapter, contents, copyright, glossary, help, , next, prev, section, start, stylesheet, and subsection. The most common use of this attribute is to specify a link to an external style sheet. The rel attribute is set to stylesheet, and the href attribute is set to the URL of an external style sheet to format the page. WebTV also supports the use of the value next for rel to preload the next page in a document series.