In general you can't work with XSLT in this way. One reason is that for-each 
is not 'a loop'. It processes all the nodes chosen, maybe all at once or in 
reverse order, that is processor dependent and is a black box.
What you need to do is re-phrase the question in a functional manner.
For example it maybe necessary to group the nodes first and/or use only 
distinct values.
If you are using XSLT 2.0 this is easy, with version 1.0 you can use 
Muenchian grouping.

-- 

Joe Fawcett (MVP - XML)
http://joe.fawcett.name

"smartnhandsome" <smartnhandsome@g...> wrote in message 
news:7375505b-10ae-4913-a38f-327997753f10@v......
> Hi every one,
> I have a simple variable comparison to be done in loop <xsl:for-each
> and i have to compare a value from an xml document from a previous
> value. I.e the xml tags might contain duplicates so i am comparing the
> previous value from the current value to be converted into a pdf
> document. I have two problems how do keep track of previous value
> using a variable or other wise and how to use xsl choose i am doing
> some thing like this.
>
> <xsl:variable name="PRGPIDP"  select="'jk'"/>
> <xsl:for-each select="itemMovementListsReport/
> ItemMovementListsReportGroupEntry">
>
>         <xsl:when test="$PRGPIDP eq PRGPID">
>             <fo:table-cell text-align="right"><fo:block><xsl:value-
> of select="$PRGPIDP"/></fo:block></fo:table-cell>
>           </xsl:when>
>           <xsl:otherwise>
>             <fo:table-cell text-align="right"><fo:block><xsl:value-
> of select="PRGPID"/></fo:block></fo:table-cell>
>           </xsl:otherwise>
>         </xsl:choose>
>
>        <xsl:variable name="PRGPIDP" select="PRGPID"></xsl:variable>
>            </xsl:for-each>
>
> The variable i am using is also not being reset, can any one please
> let me know any other ideas?