into a document</a>, <a href=#insert-an-element-into-a-document title="insert an element into a
document">removed from a document</a>; and whenever an ancestor
<code><a href=#the-object-element>object</a></code> element changes to or from showing its
<a href=#fallback-content>fallback content</a>; and whenever the element's <code title=attr-object-classid>classid</code> attribute is set,
changed, or removed; and, when its <code title=attr-object-classid>classid</code> attribute is not present,
<a href=#fallback-content>fallback content</a>; and whenever the element's <code title=attr-object-classid><a href=#attr-object-classid>classid</a></code> attribute is set,
changed, or removed; and, when its <code title=attr-object-classid><a href=#attr-object-classid>classid</a></code> attribute is not present,
whenever its <code title=attr-object-data><a href=#attr-object-data>data</a></code> attribute is
set, changed, or removed; and, when neither its <code title=attr-object-classid>classid</code> attribute nor its <code title=attr-object-data><a href=#attr-object-data>data</a></code> attribute are present, whenever
set, changed, or removed; and, when neither its <code title=attr-object-classid><a href=#attr-object-classid>classid</a></code> attribute nor its <code title=attr-object-data><a href=#attr-object-data>data</a></code> attribute are present, whenever
its <code title=attr-object-type><a href=#attr-object-type>type</a></code> attribute is set,
changed, or removed: the user agent must run the following steps to
(re)determine what the <code><a href=#the-object-element>object</a></code> element represents:</p>
<li>
<p>If the <code title=attr-object-classid>classid</code>
<p>If the <code title=attr-object-classid><a href=#attr-object-classid>classid</a></code>
attribute is present, and has a value that isn't the empty string,
then: if the user agent can find a <a href=#plugin>plugin</a> suitable
according to the value of the <code title=attr-object-classid>classid</code> attribute, and <a href=#sandboxPluginObject>plugins aren't being sandboxed</a>,
according to the value of the <code title=attr-object-classid><a href=#attr-object-classid>classid</a></code> attribute, and <a href=#sandboxPluginObject>plugins aren't being sandboxed</a>,
then that <a href=#plugin>plugin</a> <a href=#object-plugin>should be
used</a>, and the value of the <code title=attr-object-data><a href=#attr-object-data>data</a></code> attribute, if any, should be
passed to the <a href=#plugin>plugin</a>. If no suitable
<code title="">rev="made"</code>, use <code title="">rel="author"</code>.)</dd>
<dt><dfn id=attr-a-name title=attr-a-name><code>name</code></dfn> on <code><a href=#the-a-element>a</a></code> elements (except as noted in the previous section)</dt>
<dt><dfn id=attr-embed-name title=attr-embed-name><code>name</code></dfn> on <code><a href=#the-embed-element>embed</a></code> elements</dt>
<dt><dfn id=attr-img-name title=attr-img-name><code>name</code></dfn> on <code><a href=#the-img-element>img</a></code> elements</dt>
<dd><p>Use the <code title=attr-id><a href=#the-id-attribute>id</a></code> attribute instead.</dd>
<dd><p>Use only one scheme per field, or make the scheme declaration part of the value.</dd>
<dt><dfn id=attr-object-archive title=attr-object-archive><code>archive</code></dfn> on <code><a href=#the-object-element>object</a></code> elements</dt>
<dt><dfn id=attr-object-classid title=attr-object-classid><code>classid</code></dfn> on <code><a href=#the-object-element>object</a></code> elements</dt>
<dt><dfn id=attr-object-code title=attr-object-code><code>code</code></dfn> on <code><a href=#the-object-element>object</a></code> elements</dt>
<dt><dfn id=attr-object-codebase title=attr-object-codebase><code>codebase</code></dfn> on <code><a href=#the-object-element>object</a></code> elements</dt>
<dt><dfn id=attr-object-codetype title=attr-object-codetype><code>codetype</code></dfn> on <code><a href=#the-object-element>object</a></code> elements</dt>
<dt><dfn id=attr-col-align title=attr-col-align><code>align</code></dfn> on <code><a href=#the-col-element>col</a></code> elements</dt>
<dt><dfn id=attr-col-char title=attr-col-char><code>char</code></dfn> on <code><a href=#the-col-element>col</a></code> elements</dt>
<dt><dfn id=attr-col-charoff title=attr-col-charoff><code>charoff</code></dfn> on <code><a href=#the-col-element>col</a></code> elements</dt>
<dt><dfn id=attr-col-valign title=attr-col-vAlign><code>valign</code></dfn> on <code><a href=#the-col-element>col</a></code> elements</dt>
<dt><dfn id=attr-col-valign title=attr-col-valign><code>valign</code></dfn> on <code><a href=#the-col-element>col</a></code> elements</dt>
<dt><dfn id=attr-col-width title=attr-col-width><code>width</code></dfn> on <code><a href=#the-col-element>col</a></code> elements</dt>
<dt><dfn id=attr-div-align title=attr-div-align><code>align</code></dfn> on <code><a href=#the-div-element>div</a></code> elements</dt>
<dt><dfn id=attr-dl-compact title=attr-dl-compact><code>compact</code></dfn> on <code><a href=#the-dl-element>dl</a></code> elements</dt>
<dt><dfn id=attr-embed-align title=attr-embed-align><code>align</code></dfn> on <code><a href=#the-embed-element>embed</a></code> elements</dt>
<dt><dfn id=attr-hr-align title=attr-hr-align><code>align</code></dfn> on <code><a href=#the-hr-element>hr</a></code> elements</dt>
<dt><dfn id=attr-hr-noshade title=attr-hr-noshade><code>noshade</code></dfn> on <code><a href=#the-hr-element>hr</a></code> elements</dt>
<dt><dfn id=attr-hr-size title=attr-hr-size><code>size</code></dfn> on <code><a href=#the-hr-element>hr</a></code> elements</dt>
