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<xs:element name="embed"> <xs:complexType mixed="true"> <!-- from http://www.htmlref.com/Reference/AppA/tag_embed.htm --> <xs:attribute name="align" type="xs:string" /> <xs:attribute name="alt" type="xs:string" /> <xs:attribute name="class" type="xs:string" /> <xs:attribute name="code" type="xs:string" /> <xs:attribute name="codebase" type="xs:string" /> <xs:attribute name="height" type="xs:string" /> <xs:attribute name="hspace" type="xs:string" /> <xs:attribute name="id" type="xs:string" /> <xs:attribute name="language" type="xs:string" /> <xs:attribute name="name" type="xs:string" /> <xs:attribute name="src" type="xs:string" /> <xs:attribute name="style" type="xs:string" /> <xs:attribute name="title" type="xs:string" /> <xs:attribute name="unselectable" type="xs:string" /> <xs:attribute name="vspace" type="xs:string" /> <xs:attribute name="width" type="xs:string" / <!-- used by you tube --> <xs:attribute name="type" type="xs:string" /> <xs:attribute name="allowscriptaccess" type="xs:string" /> <xs:attribute name="allowfullscreen" type="xs:string" /> </xs:complexType> </xs:element>This definition was created based on the attributes list at http://www.htmlref.com/Reference/AppA/tag_embed.htm and some attributes used by You Tube. You may need to define additional attributes as needed. Next we need to add a reference to the new embed definition in the object definition. Find the definition and replace the first part with the following which has the embed reference:
<xs:element name="object"> <xs:complexType mixed="true"> <xs:choice minOccurs="0" maxOccurs="unbounded"> <xs:element ref="embed" /> <xs:element ref="param" /> <xs:group ref="block" /> <xs:element ref="form" /> <xs:group ref="inline" /> <xs:group ref="misc" /> </xs:choice> ...Save the file and your embed element problems should disappear. Remember however that doing this will mean that your site is no longer XHTML strict.