Cara Konfigurasi/Memasang CKEditor dan KCFinder di CodeIgniter

CKEDITOR.editorConfig = function( config ){
	config.filebrowserBrowseUrl = '../asset/kcfinder/browse.php?type=files';
	config.filebrowserImageBrowseUrl = '../asset/kcfinder/browse.php?type=images';
	config.filebrowserFlashBrowseUrl = '../../asset/kcfinder/browse.php?type=flash';
	config.filebrowserUploadUrl = '../../asset/kcfinder/upload.php?type=files';
	config.filebrowserImageUploadUrl = '../../asset/kcfinder/upload.php?type=images';
	config.filebrowserFlashUploadUrl = '../../asset/kcfinder/upload.php?type=flash';
};

<?php
class Kcfinder extends CI_Controller {

	function __construct(){
		parent::__construct();
		session_start();
	}

	function index(){
		$this->load->view('kcfinder/login');
	}

	function login(){
		$usr = $this->input->post('username');
		$pass = $this->input->post('password');
		if($usr=="admin" || $pass=="admin"){
			$_SESSION['ses_admin']="admin";
			$_SESSION['ses_kcfinder']=array();
			$_SESSION['ses_kcfinder']['disabled'] = false;
			$_SESSION['ses_kcfinder']['uploadURL'] = "../content_upload";
			$this->admin();
		}
		else { $this->index(); }
	}

	function admin(){
		$session=isset($_SESSION['ses_admin']) ? $_SESSION['ses_admin']:'';
		if($session==""){
			$this->login();
		}else { $this->load->view('kcfinder/admin'); }
	}

	function logout(){
		session_destroy();
		$this->login();
	}
}

<form method="post" action="<?php echo base_url(); ?>kcfinder/login">
	<label>Username</label>
	<input type="text" name="username" />
	<label>Password </label>
	<input type="password" name="password" />
	<input type="submit" value="Masuk" />
</form>

<script type="text/javascript" src="<?php echo base_url(); ?>asset/ckeditor/ckeditor.js"></script>
<textarea class="ckeditor" name="editor"></textarea>

<?php
	$_CONFIG = array(
		'disabled' => true,
		'denyZipDownload' => false,
		'denyUpdateCheck' => false,
		'denyExtensionRename' => false,
		'theme' => "oxygen",
		'uploadURL' => "upload",
		'uploadDir' => "",
		'dirPerms' => 0755,
		'filePerms' => 0644,
		'access' => array(
			'files' => array(
					'upload' => true,
					'delete' => true,
					'copy' => true,
					'move' => true,
					'rename' => true
			),
			'dirs' => array(
					'create' => true,
					'delete' => true,
					'rename' => true
			)
		),
		'deniedExts' => "exe com msi bat php phps phtml php3 php4 cgi pl",
		'types' => array(
			// CKEditor &amp; FCKEditor types
			'files'   =>  "",
			'flash'   =>  "swf",
			'images'  =>  "*img",

			// TinyMCE types
			'file'    =>  "",
			'media'   =>  "swf flv avi mpg mpeg qt mov wmv asf rm",
			'image'   =>  "*img",
		),
		'filenameChangeChars' => array(/*
			' ' => "_",
			':' => "."
		*/),
		'dirnameChangeChars' => array(/*
			' ' => "_",
			':' => "."
		*/),
		'mime_magic' => "",
		'maxImageWidth' => 0,
		'maxImageHeight' => 0,
		'thumbWidth' => 100,
		'thumbHeight' => 100,
		'thumbsDir' => ".thumbs",

		'jpegQuality' => 90,
		'cookieDomain' => "",
		'cookiePath' => "",
		'cookiePrefix' => 'KCFINDER_',

		// THE FOLLOWING SETTINGS CANNOT BE OVERRIDED WITH SESSION CONFIGURATION
		'_check4htaccess' => true,
		//'_tinyMCEPath' => "/tiny_mce",
		'_sessionVar' => &amp;$_SESSION['ses_kcfinder'],
		//'_sessionLifetime' => 30,
		//'_sessionDir' => "/full/directory/path",

		//'_sessionDomain' => ".mysite.com",
		//'_sessionPath' => "/my/path",
);