Cancel autocomplete in captcha field

In any input field I can add autocomplete="off" to prevent the input history from dropping down.
But what should I do with the captcha field which it's input filed is generated automatically using {imageverification}?

Emanuel.

Hi emanuel,

You could hack the core - or add a JavaScript snippet to add the attribute to the field on page load.

Bob

Hey Bob,

Yes, this is how I did it, but I was hopping to have a way without modifying the core code.

Anyway, in case there isn't any other nice solution (JavaScript is an option, but I want it to run also on machines not running JS, here are the directions to modify the core code:
components\com_chronocontact\chronocontact.html.php
I added the autocomplete="off" in the variable $imver (around line 175. If you it is hard to find, search for the work imageverification in the referred document.

Thanks anyway,
Emanuel.