ncc.html)The user may intervene with the linear sequential presentation provided by the SMIL files alone.
To do this, the user activates a link in the ncc.html document. The Navigation Control Center contains a series of links to certain positions of the SMIL presentation.
[...]
<h1 class="title">
<a href="dtb_1.smil#par1">Title</a>
</h1>
<span class="page-normal">
<a href="dtb_1.smil#par2">1</a>
</span>
<h2>
<a href="dtb_2.smil#par1">Chapter 1</a>
</h2>
<h2>
<a href="dtb_3.smil#par1">Chapter 2</a>
</h2>
[...]
ncc.html use a URI that contains not only the name of the SMIL file, but also (following the # character) a fragment of that smil file. The target fragment is always the value of an id attribute in the SMIL file.