Using <xsl:import> to Insert an XSLT File with Lower Precedence
In addition to the <xsl:include>
mechanism discussed in the previous topic, the XSLT standard provides a more advanced import feature: the <xsl:import>
element.
The <xsl:import>
element resembles <xsl:include>
in many respects. Both are empty, top-level elements, and they have the same syntax:
<xsl:import href="uri"/>
In this syntax, uri is the Uniform Resource Identifier (URI) of another style sheet whose contents are to be logically included within the main style sheet.