interpolating tree fragments in xslt

[Graydon Hoare]

hey, I've noticed you can pass around output tree fragments in xslt as 
param-variables, which is nice, it's almost like using sosofos again,
but the burning question I have is "how do I interpolate variables of
this type into a template"?

for example, lets say I do this:

<xsl:template match="foo">
 <xsl:call-template name="blue-tabler">
 <xsl:param name="content">
  <b>Beetles</b>, arachnids, and <u>chickens</u>	
 </xsl:param>
 </xsl:call-template>
</xsl:template>

<xsl:template name="blue-tabler">
<xsl:param-variable name="content"/>
 <table bgcolor="blue"><tr><td>

 <!-- what do I do here to access $content? -->

 </td></tr></table>	
</xsl:template>

The problem is probably really simple but I don't see in the xslt spec
anything about interpolating variables of this type into the body of a
template. There's the <xsl:value-of> which will stringify the output
fragment, but aside from that I'm at a loss as to how to make
templates operate on fragments.

Or am I thinking too dsssl-like here?

-graydon

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