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		<div id="Description">
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				<tr><td valign="top" class="name">optgroup</td><td valign="top" nowrap class="compatibility">NN <span class="emphasis">6</span> IE <span class="emphasis">5(Mac)/6)Win)</span> DOM <span class="emphasis">1</span></td>
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					<td valign="top" colspan="2" class="description"><p>L&acute;objet <span class="literal">optgroup</span> repr&eacute;sente l&acute;&eacute;l&eacute;ment <span class="literal">optgroup</span>, qui doit toujours &ecirc;tre imbriqu&eacute; dans un &eacute;l&eacute;ment <span class="literal">select</span> et entourer des &eacute;l&eacute;ments d&acute;options. Reportez-vous &agrave; l&acute;&eacute;l&eacute;ment <span class="literal">optgroup</span> dans le chapitre 8 pour trouver les informations de prise en charge de cet &eacute;l&eacute;ment par les navigateurs  La propri&eacute;t&eacute; <span class="literal">disabled</span>(d&eacute;crite parmi les propri&eacute;t&eacute;s partag&eacute;es pr&eacute;c&eacute;demment dans ce chapitre) est disponible pour cet objet et influence le statut de d&eacute;sactivation des &eacute;l&eacute;ments <span class="literal">option</span> imbriqu&eacute;s.
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					<td valign="top" colspan="2" class="htmlequivalent"><span class="title">Equivalent HTML</span></td>
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					<td><span class="programlisting"><pre>&lt;optgroup&gt;</pre>
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					<td valign="top" colspan="2" class="objectmodelreference"><span class="title">R&eacute;f&eacute;rence de mod&egrave;le d'objet</span></td>
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					<td><span class="programlisting"><pre>[window.]document.getElementById("<span class="replaceable">elementID</span>")</pre>
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					<td valign="top" colspan="2" class="objectspecificproperties"><span class="title">Propri&eacute;t&eacute;s sp&eacute;cifiques &agrave; l&acute;objet</span></td>
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					<td colspan="2"><p><span class="literal">label</span></p>
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					<td valign="top" colspan="2" class="CLEARSEPARATION">&#160;</td>
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					<td valign="top" colspan="2" class="objectspecificmethods"><span class="title">M&eacute;thodes sp&eacute;cifiques &agrave; l&acute;objet</span></td>
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					<td colspan="2"><p>Aucune. </p>
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					<td valign="top" colspan="2" class="objectspecificeventhandlerproperties"><span class="title">Propri&eacute;t&eacute;s de gestionnaire d&acute;&eacute;v&eacute;nements sp&eacute;cifiques &agrave; l&acute;objet</span></td>
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					<td colspan="2"><p>Aucune. </p>
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				<tr><td valign="top" class="name">label</td><td valign="top" nowrap class="compatibility">NN <span class="emphasis">6</span> IE <span class="emphasis">5(Mac)/6(Win)</span> DOM <span class="emphasis">1</span></td>
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					<td valign="top" nowrap class="usage"><p class="literal"></p>
					</td><td valign="top" nowrap class="requirements">Lecture/&eacute;criture</td>
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					<td valign="top" colspan="2" class="description"><p>Repr&eacute;sente l&acute;attribut <span class="literal">label</span> de l'&eacute;l&eacute;ment <span class="literal">optgroup</span>.
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					<td valign="top" colspan="2" class="value"><span class="title">Valeur</span></td>
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					<td colspan="2"><p>Cha&icirc;ne.</p>
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					<td valign="top" nowrap colspan="2" class="default"><span class="title">Par d&eacute;faut</span></td>
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					<td colspan="2"><p>Aucune.</p>
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