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<h2>The id Attribute Replaces The name Attribute</h2>
<p>HTML 4.01 defines a name attribute for the elements a,
applet, frame, iframe, img, and map. In XHTML the name attribute is deprecated.
Use id instead.</p>
<p>This is wrong:</p>
<table width="100%" border="1" class="ex" cellspacing="0"><tr><td>
<pre><img src="picture.gif" name="picture1" /></pre>
</td></tr></table>
<p>This is correct:</p>
<table width="100%" border="1" class="ex" cellspacing="0"><tr><td>
<pre><img src="picture.gif" id="picture1" /></pre>
</td></tr></table>
<p>
<b>Note:</b> To interoperate with older browsers for a while, you should use both
name and id, with identical attribute values, like this:</p>
<table width="100%" border="1" class="ex" cellspacing="0"><tr><td>
<pre><img src="picture.gif" id="picture1" name="picture1" /></pre>
</td></tr></table>
<p><b>IMPORTANT Compatibility Note:</b></p>
<p>To make your XHTML compatible with today's browsers, you should add an extra
space before the "/" symbol.</p>
<hr />
<h2>The Lang Attribute</h2>
<p>The lang attribute applies to almost every XHTML element. It specifies the
language of the content within an element.</p>
<p>If you use the lang attribute in an element, you must add the xml:lang attribute,
like this: </p>
<table width="100%" border="1" class="ex" cellspacing="0"><tr><td>
<pre><div lang="no" xml:lang="no">Heia Norge!</div></pre>
</td></tr></table>
<br />
<hr />
<h2>Mandatory XHTML Elements</h2>
<p>All XHTML documents must have a DOCTYPE declaration. The html, head and body elements must be present, and the title must be
present inside the
head element.</p>
<p>This is a minimum XHTML document template:</p>
<table width="100%" border="1" class="ex" cellspacing="0"><tr><td>
<pre><!DOCTYPE Doctype goes here>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Title goes here</title>
</head></pre>
<pre><body>
</body></pre>
<pre></html></pre>
</td></tr></table>
<p>
<b>Note</b>: The DOCTYPE declaration is not a part of the XHTML document itself.
It is not an XHTML element, and it should not have a closing tag.</p>
<!--<p>
<b>Note</b>: The xmlns attribute inside the <html> tag is required in XHTML.
However, the validator on w3.org does not complain when this attribute is
missing in an XHTML document. This is because "xmlns=http://www.w3.org/1999/xhtml"
is a fixed value and will be added to the <html> tag even if you do not include
it.</p>-->
<p>
You will learn more about the XHTML document type definition in the next
chapter.</p>
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