> Sure, but that's very general and only fits certain circumstances.
> 
> For example if you have:
> 
> <xsl:template match="foo">
>   <span style="background:blue">
>     <xsl:apply-templates/>
>   </span>
> </xsl:template>
> 
> ..in your html-producing stylesheet and a corresponding 
> template in your fo-producing stylesheet, what happens when 
> its decided the background should be red?
> 
> How can we arrange it so that change from blue to red is made 
> in one place rather than both stylesheets?

What's wrong with a global variable?

<xsl:variable name="foo-background" select="'blue'"/>

<xsl:template match="foo">
  <span style="background:{$foo-background}"> 

Michael Kay


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