[TYPO3] problem with a condition in typoscript

[Rafael Álvarez]

HI,

Using wfqbe extension, I get values from a table where a field is a  
link to a file. I want to show an image as a link to that file only  
if exists. I am using this code:

	3 = IMAGE
	3 {
		file.maxW = 40
		file=fileadmin/templates/BIENAL_RMN_2008/images/download_file.jpg
		stdWrap.typolink.parameter = ###WFQBE_FIELD_3###
		if {
			isTrue.value = ###WFQBE_FIELD_3###
		
		}

###WFQBE_FIELD_3### contains the link, my problem is with the if  
condition. Obviously the syntax is incorrect but I can´t guess the  
right one.
Any suggestions ?

Thanks in advance

________________________________________________________________________ 
___
(Si este mensaje contiene un attach será expresamente indicado en el  
texto)

"Hay 10 tipos de personas, las que saben binario y las que no"

Rafael Alvarez Romo
Responsable de tecnologías de la información
Centro de Inv. Científicas Isla de la Cartuja (CSIC-Univ. Sevilla)
Avda. Americo Vespucio, 49 41092-Sevilla (España)
E-Mail: romo at cartuja.csic.es
Skype: Rafael.Alvarez
tel: 954489505