[Zope] URL param string problem

[Mark A. Lilly]

Hi All,

I have a DTML method which needs to concat a URL.

We have:

<dtml-with
expr="web_client('http://192.168.1.1/tinorb/pieex2.php?imageName=CA')">
  <dtml-var body>
</dtml-with>

There is a variable &dtml-theImageName; which needs to replace the CA in the
above code with the value of &dtml-theImageName; (which is equal to OH).

I tried doing something like
<dtml-let
theURL="_['http://192.168.1.1/tinorb/pieex2.php?imageName='+theImageName]">

But i get the following key error, which has the exact URL i want to pass to
web_client (see above) but it's not working.  Any thoughts??

Error Type: KeyError
Error Value: http://192.168.1.1/tinorb/pieex2.php?imageName=OH

Thanks,
m