[TYPO3-english] calculation with values from register

[Rob De Vries]

Hello,

I'm trying to do a very simple calculation with values i've added to the 
register :

lib.output = COA
lib.output {
	20 = LOAD_REGISTER
	20 { 
	20.numRows.table = tt_content 
	20.numRows.select.pidInList = this
	20.numRows.select.where = tx_templavoila_ds = 2 AND deleted=0 AND 
hidden=0
	
	}
	
	21 = LOAD_REGISTER
	21 {
	21.numRows.table = tt_content 
	21.numRows.select.pidInList = this
	21.numRows.select.where = tx_templavoila_ds = 5 AND deleted=0 AND 
hidden=0
	}
	
	22 = LOAD_REGISTER
	22 {
	22.numRows.table = tt_content 
	22.numRows.select.pidInList = this
	22.numRows.select.where = tx_templavoila_ds = 6 AND deleted = 0 AND 
hidden=0
	}
	
	40 = TEXT
	40.value = {register:20}+{register:21}
	40.insertData=1
	40.prioriCalc = 1
	40.wrap = <br />SUM=|
}

output:  SUM=0

I don't understand why the outpuy is 0

register:20 = 1 and register:21 = 3 so the output need to be 4. 

any suggestions on what i'm doing wrong ?

tnx
Rob
-- 
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Rob De Vries
www.rob-ot.be