It looks like I need to ask for the type of a python variable from DTML. So far, I haven't been able to get this to work: <dtml-if "type(TAG)==type('x')"> I am trying to see if the TAG variable is a string. Zope complains about "type". I tried using the special name space: <dtml-if "_.type(TAG)==_.type('x')"> But it looks like "type" is not a function available through that means. Is there another way to use the type of a variable for branching? Actually, the reason this arises is forms. I have a series of radio buttons in a form. When submitted to Zope, I notice that if one item is selected, the value is a string. When many items are selected, the value is a list of strings. Since <dtml-in> does not accept a single string as an argument, I need to test to see if the incoming value is a string or a list of strings before processing it. I will gladly accept any better idioms for handling this case. The tests certainly make the DTML code more complex than I think it should be. David S. Harrison (dsh@magma-da.com)