I have variables like this: (and many more)
<xsl:variable name="HE01_1">-30 min.</xsl:variable>
<xsl:variable name="HE02_1">08:00</xsl:variable>
...
<xsl:variable name="HE01_2">Day 1, 08:00</xsl:variable>
...
<xsl:variable name="HE11_8">Day 11, 08:00</xsl:variable>
Wrong design. The way to handle structured data is to use XML. Use a single
variable
<xsl:variable name="HE">
<HE01_1>-30 min.</HE01_1>
<HE02_1>08:00</HE02_1>
</xsl:variable>
and then you can access its components using path expressions (using the
xx:node-set() extension if in XSLT 1.0)
Michael Kay