[Zope] dtml-in syntax

zAllProjRoles is a zsqlmethod that returns as one of it's fields Projteamid. I can get a value if I use <dtml-var Projteamid> within the loop. ProjTeamPhones takes an argument called Projteamid. It should return all the phone numbers for this id number. But this code gives me a 'Bad Request Error' on 'Projteamid'. How can I pass the correct value? <snip> <dtml-in zAllProjRoles> <table bgcolor="<dtml-var color2>" width=800 cellspacing=0 cellpadding=5 border=0> ,,<snip>.. <dtml-var ContempContactName> </td> <td align="left"> <dtml-in ProjTeamPhones> <dtml-var PhoneNumber><br> </dtml-in> </td> </tr> </dtml-in>