[xsl] sum within template

Subject: [xsl] sum within template
From: "shadab" <mohammad.shadab@xxxxxxxxxxx>
Date: Mon, 19 May 2003 20:32:36 +0530

I have a template,

<xsl:template match="purchaseOrder/items/quantity">
<xsl:element name="quant"><xsl:value-of select="current()"/></xsl:element>

Now the occurence of items is unbounded.I would like to get the sum of all
the 'quantity' fields within items.

By changing value-of select=sum(current()) it throws an error.Any ideas how
i could get the sum of all 'quantity' without removing template?


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