Adding Image Verification to a plugin

[TheMilkCarton]

I have... but what is the if conditional I need?? "if condition="!reg_imagecheck"" Or something?

I've gotten one step closer. I added

if (sizeof($errors) > 0)
    {
        // ### POST HAS ERRORS ###
        if ($vbulletin->GPC['ajax'])
        {
            require_once(DIR . '/includes/class_xml.php');
            $xml = new vB_AJAX_XML_Builder($vbulletin, 'text/xml');
            $xml->add_group('errors');
            foreach ($errors AS $error)
            {
                $xml->add_tag('error', $error);
            }
            $xml->close_group();
            $xml->print_xml();
        }
        else
        {
            $postpreview = construct_errors($errors); // this will take the preview's place
            construct_checkboxes($newpost);
            $_REQUEST['do'] = 'newreply';
            $newpost['message'] = htmlspecialchars_uni($newpost['message']);
        }
    }

but this was from newreply instead of newthread, because the code from newthread I tried didn't work...

But anyway, now if they get the Image Code wrong it redirects them to a blank box. (Instead of popping up a box with the error in the same window) So at least I'm getting somewhere. I'm a total n00b at coding, if you can't tell.

Yes yes yes yes yes. So I tried..

removed

And it takes me to another page that says the register_imagecheck phrase. YAY. Now I just need to make sure everything else still works.

Is there a way to change it so that it ONLY evaluates that if !=='register_imagecheck' ? I don't want just any error causing it to give that message. Or will it?