Folks,

I got an error when i use the sum() command. Can you help me, guys? :)

I have following XML-structure:

<query>
    <row>
        <value field="data">25/07/2002</value>
        <value field="hora">15:54:40</value>
        <value field="grupo">2ª A 6ª</value>
        <value field="tipo">Voz</value>
        <value field="duracao">00:15:00</value>
        <value field="valor">80.04</value>
    </row>
    <row>
        <value field="data">25/07/2002</value>
        <value field="hora">15:45:30</value>
        <value field="grupo">2ª A 6ª</value>
        <value field="tipo">Voz</value>
        <value field="duracao">00:10:00</value>
        <value field="valor">0.05</value>
    </row>
    <row>
        ....
    </row>
</query>

I'm doing a <xsl:for-each select="value"> and puting all these values in a
<table> html. Now I wanna put the last line with a <td> with the total sum
of the "duracao" field and another <td> with the "valor" sum. Out of
for-each, I'm doing the following: <xsl:value-of
select="sum(/query/row[value/@field='duracao'])"/> and <xsl:value-of
select="sum(/query/row[value/@field='valor'])"/>. Both are returning NaN.

Any idea, guys?

Thanks,
Vitor

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