[Zope] ids NameError

All, After looking through the list for the last hour I could not find an answer to the following problem. I have a dtml form that itterates over the content of a folder and displays a checkbox next to each of the files. The form allows a user to select items to be deleted. If a user does not select a check box I get the folloewing error: Error Type: NameError Error Value: global name 'ids' is not defined This only happens when a checkbox has not been selected. here is the form calling a method: <FORM ACTION="delete" method="POST"> <dtml-in "objectValues(['File'])" sort=id> <INPUT TYPE="CHECKBOX" NAME="ids:list" VALUE="<dtml-var id>"> <dtml-var id><p> </dtml-in> <INPUT TYPE="SUBMIT"> </form> Regards, Rob Grissom