How to give Subdomain path in Jbimages plugin in tinymce

config.php

<?php
/* tinymce/plugins/jbimages/config.php */

| -------------------------------------------------------------------
|
| Path to upload target folder, relative to domain name. NO TRAILING SLASH!
| Example: if an image is acessed via http://www.example.com/images/somefolder/image.jpg, you should specify here:
| 
| $config['img_path'] = '/images/somefolder';
| 
| -------------------------------------------------------------------*/

    // $config['img_path'] = '/images'; // Relative to domain name
    // $config['upload_path'] = $_SERVER['DOCUMENT_ROOT'] . $config['img_path']; // Physical path. [Usually works fine like this]

    $config['img_path'] = 'images/uploads';
    $config['base_image_url'] = 'http://cdn.yourdomain.com/';
    $config['relative_path'] = '/../cdn_public_html/';

    $config['upload_path'] = $_SERVER['DOCUMENT_ROOT'] . $config['relative_path'] . $config['img_path'];

uploader.php

<?php
/* tinymce/plugins/jbimages/ci/application/controllers/uploader.php */

	public function upload ($lang='english')
	{
		// Set language
		$this->_lang_set($lang);
		
		// Get configuartion data (we fill up 2 arrays - $config and $conf)
		
		$conf['base_image_url']		= $this->config->item('base_image_url',	'uploader_settings');
		$conf['img_path']			= $this->config->item('img_path',		'uploader_settings');
		$conf['allow_resize']		= $this->config->item('allow_resize',	'uploader_settings');
		
		$config['allowed_types']	= $this->config->item('allowed_types',	'uploader_settings');
		$config['max_size']			= $this->config->item('max_size',		'uploader_settings');
		$config['encrypt_name']		= $this->config->item('encrypt_name',	'uploader_settings');
		$config['overwrite']		= $this->config->item('overwrite',		'uploader_settings');
		$config['upload_path']		= $this->config->item('upload_path',	'uploader_settings');
		
		if (!$conf['allow_resize'])
		{
			$config['max_width']	= $this->config->item('max_width',		'uploader_settings');
			$config['max_height']	= $this->config->item('max_height',		'uploader_settings');
		}
		else
		{
			$conf['max_width']		= $this->config->item('max_width',		'uploader_settings');
			$conf['max_height']		= $this->config->item('max_height',		'uploader_settings');
			
			if ($conf['max_width'] == 0 and $conf['max_height'] == 0)
			{
				$conf['allow_resize'] = FALSE;
			}
		}
		
		// Load uploader
		$this->load->library('upload', $config);
		
		if ($this->upload->do_upload()) // Success
		{
			// General result data
			$result = $this->upload->data();
			
			// Shall we resize an image?
			if ($conf['allow_resize'] and $conf['max_width'] > 0 and $conf['max_height'] > 0 and (($result['image_width'] > $conf['max_width']) or ($result['image_height'] > $conf['max_height'])))
			{				
				// Resizing parameters
				$resizeParams = array
				(
					'source_image'	=> $result['full_path'],
					'new_image'		=> $result['full_path'],
					'width'			=> $conf['max_width'],
					'height'		=> $conf['max_height']
				);
				
				// Load resize library
				$this->load->library('image_lib', $resizeParams);
				
				// Do resize
				$this->image_lib->resize();
			}
			
			// Add our stuff
			$result['result']		= "file_uploaded";
			$result['resultcode']	= 'ok';
			$result['file_name']	= $conf['base_image_url'] . $conf['img_path'] . '/' . $result['file_name'];
			
			// Output to user
			$this->load->view('ajax_upload_result', $result);
		}
		else // Failure
		{
			// Compile data for output
			$result['result']		= $this->upload->display_errors(' ', ' ');
			$result['resultcode']	= 'failed';
			
			// Output to user
			$this->load->view('ajax_upload_result', $result);
		}
	}