[Zope] Determining object type

[Sherman Lambert (State Office)]

Hey there,

I have a in loop which iterates over two different types of objects.  I need
to know which type of object I am dealing with in each iteration.  This
can't be hard , but I cannot find it in the docs.

<dtml-in expr="(objectValues('type1')) + (objectValues('type2')">
   <dtml-if {I want type 1 here}>
        processing
  <dtml-else  {type2 by default}>
        processing
  </dtml-if>
</dtml-in>

TIA
Sherman