[Zope] Funny problem with DTML, please help!

[pan@aster.net]

Hi guys,

I hope someone can help me with this one, because it's almost driving
me crazy :-)

The following code fails with an error for count_yes:

<!--#comment-->
Calculate the vote percentage
<!--#/comment->

<!--#call "REQUEST.set('count_yes', 0)"-->
<!--#call "REQUEST.set('count_no', 0)"-->
<!--#call "REQUEST.set('count_all', 0)"-->

<!--#in sql_distinct_votes-->
  <!--#if "cnt == 1"-->
    <!--#if "answer == 'Y'"-->
      <!--#call "REQUEST.set('count_yes', REQUEST['count_yes']+cnt)"-->
    <!--#/if-->
    <!--#if "answer == 'N'"-->
      <!--#call "REQUEST.set('count_no', REQUEST['count_no']+cnt)"-->
    <!--#/if-->
    <!--#call "REQUEST.set('count_all', REQUEST['count_all']+cnt)"-->
  <!--#/if-->
<!--#/in-->

<!--#comment-->
Now display the results
<!--#/comment-->

<h2> Total : <!--#var "REQUEST['count_all']"--> votes</h2>

<ul> 
  <li>Yes : <!--#var "REQUEST['count_yes']"--> votes (<!--#var "_.round(((REQUEST['count_yes']+0.0)/REQUEST['count_all'])*100,1)"-->%)</li>
  <li>No : <!--#var "REQUEST['count_no']"--> votes (<!--#var "_.round(((REQUEST['count_no']+0.0)/REQUEST['count_all'])*100,1)"-->%)</li>
</ul>


When I change

      <!--#call "REQUEST.set('count_yes', REQUEST['count_yes']+cnt)"-->

to 

      <!--#call "REQUEST.set('count_yes', cnt)"-->

it works as expected, no errors, but that's not what I want :-( I've
tried, superstitiously, to change count_yes to several other things,
but no luck.  It always gives me an error for the vairable I
substitute for count_yes.  The strangest thing is that the same code
works for count_no and count_all ?!?

Any ideas?