Displaying html/js at checkout end using plugin

-- url of the page with the problem -- : localhost
-- HikaShop version -- : 2.5.0
-- Joomla version -- : 3.4.3
-- PHP version -- : 5.5.12
-- Browser(s) name and version -- : Firefox 37.0.2

Hello,

I'm trying to display some javascript code at the end of checkout (on last checkout page - after customer confirms order).

I found in your API docs some very useful info, for now I made some simple plugin. It has one parameter, under Extensions->Plugins->myplugin I can enter this param and everything is saving fine (plugin is group="hikashop" and it's published etc., I checked all things twice). Now in my php file I'm trying simple things like:


defined('_JEXEC') or die('Restricted access');
class plgHikashopMyPlugin extends JPlugin {
function plgHikashopMyPlugin(&$subject, $config){
parent::__construct($subject, $config);
}
function onAfterOrderCreate(&$order, &$send_email) {
$document = JFactory::getDocument();
$document->addScriptDeclaration('SOME_DUMMY_CODE = 1');
}
}


However no matter what, SOME_DUMMY_CODE doesn't appear on my after checkout (confirmation) page.
Could you please suggest why? Maybe it's not possible to "echo" anything through triggers?

I was trying also: onAfterOrderConfirm(&$order,&$methods,$method_id), didn't work.

Best regards,
Chris

Hi Nicolas,

no, it's not payment gateway, I'm using "HikaShop bank transfer payment plugin", it just displays some info at the end.

The purpose for this javascript (or any other simple code I want to display) is as follows:

Client must fill some order custom field and at the end of checkout javascript will appear or not (I'll do some simple if statement), however I can't display anything using above triggers, that's why I'm asking if everything is ok with these triggers.

Best regards,
Chris

sorry, wrong topic

I'm out of ideas Would you kindly check by your side if plugin from attachment is working or not? Thanks in advance.