Dynamic attributes from XSL (Sterling you might help)

Hi,
This is pretty OT, but I think this is a XML group so other might need this
too.

During XML/XSL content publishing, you will always need to set dynamic
attributes to various nodes. The current way we do this is

<a>
    <xsl:attribute name="href">index.php?code=<xsl:value-of
select="id"/></xsl:attribute>
Link</a>

We've heard that there might be a simpler way (using { or something).

Could someone enlighten me?

Alexandru