code>, <code>defer</code>.</p>

<h2>C.11 Document Object Model and XHTML</h2>
<p>
The Document Object Model level 1 Recommendation [<a href="#ref-dom">DOM</a>]
defines document object model interfaces for XML and HTML 4.0. The HTML 4.0
document object model specifies that HTML element and attribute names are
returned in upper-case. The XML document object model specifies that 
element and attribute names are returned in the case they are specified. In
XHTML 1.0, elements and attributes are specified in lowe