RE: Totals for conditional sums ?maybe?

Data:

<AwardFullData>
	<AwardItemizedLine>
		<periodLinePeriodNumber></periodLinePeriodNumber>
		<transactionAmount>$1,804.00</transactionAmount>
	</AwardItemizedLine>
	<AwardItemizedLine>
		<periodLinePeriodNumber></periodLinePeriodNumber>
		<transactionAmount>$600.00</transactionAmount>
	</AwardItemizedLine>
	<AwardItemizedLine>
		<periodLinePeriodNumber>1</periodLinePeriodNumber>
		<transactionAmount>$600.00</transactionAmount>
	</AwardItemizedLine>
	<AwardItemizedLine>
		<periodLinePeriodNumber>2</periodLinePeriodNumber>
		<transactionAmount>$600.00</transactionAmount>
	</AwardItemizedLine>
	......
</AwardFullData>


This statement strips all non-numeric characters (haven't made it to
reformating back to $###,###.## yet):

<xsl:value-of
select="(translate(//AwardFullData/AwardItemizedLine/transactionAmount,t
ranslate(//AwardFullData/AwardItemizedLine/transactionAmount,'0123456789
', ''), ''))"/>

Result when applied to data: 180400


This statement is supposed to sum transactionAmount where count of
periodLinePeriodNumber <1

<xsl:value-of
select="sum(translate(//AwardFullData/AwardItemizedLine[count(./periodLi
nePeriodNumber)&lt;1]/transactionAmount,translate(//AwardFullData/AwardI
temizedLine[count(./periodLinePeriodNumber)&lt;1]/transactionAmount,'012
3456789', ''), ''))"/>

Result when applied to data: Can not convert #STRING to a NodeList!


Any suggestions?