text: <?php
  defined('BASEPATH') OR exit('No direct script access allowed');
  
  class Currency extends CI_Controller {
  	
  	public function __construct() {
  		parent::__construct();
  		$this->load->model('common/currency_model');
  		$this->load->helper('cookie');
  		$this->load->library(array('currency'));
  	}
  
  	public function index()
  	{
  		if($this->input->get('currency_id')){
  			$currency=$this->currency_model->get_currency($this->input->get('currency_id'));
  			$_SESSION['currency_id']=$currency['currency_id'];
  		}
  	}
  	
  	public function compute(){
  		if($this->input->get('currency') == NULL){
  			$data['value']=$this->input->get('currency');
  		}else{
  			$data['value']=$this->currency->plus_sign($this->input->get('currency'));
  		}
  		
  		$this->output
  		    ->set_content_type('application/json')
  		    ->set_output(json_encode($data));
  	}
  }
  