[Zope] I need a clue

I'm trying to do a rather simple thing, I think, but I can't get it to work right. If someone can point out where I'm going astray, it would be appreciated. I'm trying to iterate over a list of files in a LocalFS subdirectory, and then write out some html if the files end in .gif or .jpg. Something like this: <dtml-in "images[FSSession['LoginCompanyImagesPath']].fileIds()"> <dtml-if "_.string.find('sequence-item','.gif') >= 0 or _.string.find('sequence-item','.jpg') >= 0"> ..do some things if a .gif or .jpg file </dtml-if> </dtml-in> However, the find always returns -1, regradless of whether the sequence-item has .gif or.jpg in it. I'm baffled. Jeff Nielsen / UgoFast http://www.UgoFast.com Jeff@UgoFast.com