XPATH question - not FOP related

[Brian T. Wolf]

This is obviously off-topic, but since I have been subscribed to this list for a few months I know that you folks will be the most likely to answer this. I have been searching the various references, but I am not even sure what I should be looking for.   Here is the situation: I am using <xsl:for-each> to loop through some data. For every pass after the first I want to insert another command. How do I test to see whether this is the first pass?   example:   <xsl:for-each select="some_data">    <xsl:if test="is not the first">   This is not the first!  </xsl:if>    Repeating section... </xsl:for-each>   Thank you for your help.   -Brian