Additional Parameter in onBeforeCartSave

	function onBeforeCartSave(&$element, &$do)
	{
		$additional = new stdClass();
		$additional->name = 'package1';
		$additional->price_currency_id = hikashop_getCurrency(); // this line is compulsary, else it wont change the total price
		$additional->input_currency = $this->plugin_params->currencyid;
		$additional->price_value = 10;
		$additional->price_value_with_tax = -10;
		$additional->current_total = 100;
		$additional->discounted = 10;

		$element->cart_params->additional1 = $additional;

		foreach($element->cart_params as $param)
		{

				$additional = new stdClass();
				$additional->name = $param->name;
				$additional->price_currency_id = $param->price_currency_id;
				$additional->input_currency = $param->input_currency;
				$additional->price_value = -$param->discounted;
				$additional->price_value_with_tax = -$param->discounted;
				$element->additional['package1'] = $additional;

		}


		$fp = fopen('params.txt', 'w');
		fwrite($fp, print_r($element, TRUE));
		fclose($fp);

		
		$fp = fopen('addi.txt', 'w');
		fwrite($fp, print_r($previous_total, TRUE));
		fclose($fp);

	}