[Zope] (no subject)

[Dragomir Denev]

Please help.

On the top of 'index_html' I have:

<dtml-if "REQUEST.has_key('SUBMIT')">	// this is the submit button of the form 
   					// the action of the form is 'index_html'  itself
      <dtml-call insertNewItem>		// this is a ZSQL method
 </dtml-if>
-here is the form-

The point is that I want the method to be executed only when the form is submitted.
When first displayed nothing unusual happens (the REQUEST doesn't have 'SUBMIT').
But when I submit the form than this is what I get:

Error Type: ValueError
Error Value: Invalid Header (0): 

Does anyone know what is wrong with this (or with Zope)?