The <xsl:include> element merges the contents of one stylesheet with another. Unlike the case of <xsl:import>, the contents of an included stylesheet have exactly the same precedence as the contents of the including stylesheet.
Syntax
<xsl:include href=URI />
Required Attributes
href- Specifies the URI of the stylesheet to include.
Optional Attributes
None.
Type
Top-level, may appear in any order as a child of <xsl:stylesheet> or <xsl:transform>.
Defined
XSLT, section 2.6.1.
Gecko support
Supported.